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2026-01-01
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<p>Last updated on<strong>August 5, 2025</strong></p>
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<p>Last updated on<strong>August 5, 2025</strong></p>
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<p>The smallest number that should also be a positive number, and evenly divide both the numbers, is known as the least common factor. LCM is very important for solving problems, especially fractions, scheduling events etc.</p>
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<p>The smallest number that should also be a positive number, and evenly divide both the numbers, is known as the least common factor. LCM is very important for solving problems, especially fractions, scheduling events etc.</p>
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<h2>What is the LCM of 3 and 18</h2>
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<h2>What is the LCM of 3 and 18</h2>
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<p>The LCM<a>of</a>3 and 18 is the lowest<a>number</a>that divides both 3 and 18 without leaving any<a>remainder</a>. The LCM of 3 and 18 is 18. </p>
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<p>The LCM<a>of</a>3 and 18 is the lowest<a>number</a>that divides both 3 and 18 without leaving any<a>remainder</a>. The LCM of 3 and 18 is 18. </p>
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<h2>How to find the LCM of 3 and 18?</h2>
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<h2>How to find the LCM of 3 and 18?</h2>
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<h2>LCM of 3 and 18 using Division method:</h2>
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<h2>LCM of 3 and 18 using Division method:</h2>
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<p>In the division method, we divide both the numbers by the lowest possible number until we get 1 for both numbers.</p>
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<p>In the division method, we divide both the numbers by the lowest possible number until we get 1 for both numbers.</p>
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<p>3 divides 3 and 18, leaving 1 and 6</p>
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<p>3 divides 3 and 18, leaving 1 and 6</p>
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<p>3 divides 6 leaving 2</p>
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<p>3 divides 6 leaving 2</p>
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<p>2 divides 2 leaving 1</p>
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<p>2 divides 2 leaving 1</p>
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<p>LCM = 2 × 3 × 3= 18. </p>
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<p>LCM = 2 × 3 × 3= 18. </p>
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<h3>LCM of 3 and 18 using Listing multiples:</h3>
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<h3>LCM of 3 and 18 using Listing multiples:</h3>
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<p>We write the multiples of both numbers till we find the common one.</p>
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<p>We write the multiples of both numbers till we find the common one.</p>
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<p>Multiples of 3: 3, 6, 9, 12, 15, 18, 21…</p>
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<p>Multiples of 3: 3, 6, 9, 12, 15, 18, 21…</p>
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<p>Multiples of 18: 18, 36, 54…</p>
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<p>Multiples of 18: 18, 36, 54…</p>
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<p>The<a>common multiple</a>is 18. So, the LCM of 3 and 18 is 18. </p>
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<p>The<a>common multiple</a>is 18. So, the LCM of 3 and 18 is 18. </p>
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<h3>LCM of 3 and 18 using prime factorization:</h3>
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<h3>LCM of 3 and 18 using prime factorization:</h3>
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<p>We part each number into divisors and select the highest<a>powers</a>of all the prime<a>factors</a>.</p>
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<p>We part each number into divisors and select the highest<a>powers</a>of all the prime<a>factors</a>.</p>
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<p>3= 3</p>
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<p>3= 3</p>
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<p>18= 2 × 3 × 3</p>
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<p>18= 2 × 3 × 3</p>
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<p>LCM = 2 × 3 × 3= 18. </p>
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<p>LCM = 2 × 3 × 3= 18. </p>
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<h2>Common Mistakes and How to Avoid Them in LCM of 3 and 18</h2>
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<h2>Common Mistakes and How to Avoid Them in LCM of 3 and 18</h2>
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<p>While solving problems on LCM children are likely to make common mistakes, here are a few mistakes and how to avoid them. </p>
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<p>While solving problems on LCM children are likely to make common mistakes, here are a few mistakes and how to avoid them. </p>
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<h3>Problem 1</h3>
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<h3>Problem 1</h3>
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<p>If the LCM of 3 and a number x is 18, what is the value of x?</p>
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<p>If the LCM of 3 and a number x is 18, what is the value of x?</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>LCM(3,x) = 18</p>
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<p>LCM(3,x) = 18</p>
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<p>Using the formula: LCM(a, b) x GCF(a, b) = a × b</p>
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<p>Using the formula: LCM(a, b) x GCF(a, b) = a × b</p>
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<p>Here, a =3 , b =18</p>
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<p>Here, a =3 , b =18</p>
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<p>GCF(3,x)=3</p>
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<p>GCF(3,x)=3</p>
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<p>18 × 3 = 3 x x</p>
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<p>18 × 3 = 3 x x</p>
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<p>54=3x</p>
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<p>54=3x</p>
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<p>x=18 </p>
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<p>x=18 </p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>The value of x is 18. Since the LCM of 3 and 18 is indeed 18, this verifies the solution. </p>
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<p>The value of x is 18. Since the LCM of 3 and 18 is indeed 18, this verifies the solution. </p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 2</h3>
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<h3>Problem 2</h3>
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<p>Solve the following expression using LCM of 3 and 18: 5/3 + 1/18</p>
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<p>Solve the following expression using LCM of 3 and 18: 5/3 + 1/18</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>LCM(3,18)=18</p>
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<p>LCM(3,18)=18</p>
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<p>5/3 = 30/18 , 1/18=1/18</p>
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<p>5/3 = 30/18 , 1/18=1/18</p>
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<p>Add the fractions:</p>
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<p>Add the fractions:</p>
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<p>30/18 + 1/18 = 31/18 </p>
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<p>30/18 + 1/18 = 31/18 </p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>The sum of 5/3 and 1/18 is 31/18 , with, 18 as the common denominator. </p>
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<p>The sum of 5/3 and 1/18 is 31/18 , with, 18 as the common denominator. </p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 3</h3>
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<h3>Problem 3</h3>
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<p>Verify the prime factorization of LCM(3,10) using their prime factors.</p>
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<p>Verify the prime factorization of LCM(3,10) using their prime factors.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>Prime factors of 3 =3 ,</p>
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<p>Prime factors of 3 =3 ,</p>
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<p>Prime factors of 10= 2 × 5</p>
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<p>Prime factors of 10= 2 × 5</p>
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<p>LCM= 2 × 3 × 5= 30 </p>
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<p>LCM= 2 × 3 × 5= 30 </p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>The LCM of 3 and 10 is 30, which is verified through the prime factorization. </p>
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<p>The LCM of 3 and 10 is 30, which is verified through the prime factorization. </p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 4</h3>
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<h3>Problem 4</h3>
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<p>Simplify the expression: x/3 + 2/18 = 1</p>
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<p>Simplify the expression: x/3 + 2/18 = 1</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>LCM (3,18) =18</p>
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<p>LCM (3,18) =18</p>
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<p>6x18 + 218 =1</p>
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<p>6x18 + 218 =1</p>
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<p>6x + 2 = 18</p>
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<p>6x + 2 = 18</p>
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<p> 6x= 18-2</p>
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<p> 6x= 18-2</p>
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<p>6x = 16</p>
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<p>6x = 16</p>
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<p>x=8/3 </p>
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<p>x=8/3 </p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>The value of x is 8/3. This simplifies the original expression correctly using the LCM of 3 and 18. </p>
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<p>The value of x is 8/3. This simplifies the original expression correctly using the LCM of 3 and 18. </p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h2>FAQs on LCM of 3 and 18</h2>
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<h2>FAQs on LCM of 3 and 18</h2>
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<h3>1.Is 945 a prime number?</h3>
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<h3>1.Is 945 a prime number?</h3>
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<p> A prime number is the number that should have only two factors. As we know that 945 has more than 2 factors it's not a prime number, it is a<a>composite number</a></p>
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<p> A prime number is the number that should have only two factors. As we know that 945 has more than 2 factors it's not a prime number, it is a<a>composite number</a></p>
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<h3>2.Is 4 and 24 a factor pair of 96 ?</h3>
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<h3>2.Is 4 and 24 a factor pair of 96 ?</h3>
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<p>The pairs of 96 are (1,96), (2,48), (3,32), (4,24), (6,16)and(8,12). </p>
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<p>The pairs of 96 are (1,96), (2,48), (3,32), (4,24), (6,16)and(8,12). </p>
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<h3>3.What is the prime factorization of the 5005?</h3>
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<h3>3.What is the prime factorization of the 5005?</h3>
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<p> The prime factors of 5005 are 5,7,11,13. Therefore, the products of prime factors are 5,7,11,13. </p>
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<p> The prime factors of 5005 are 5,7,11,13. Therefore, the products of prime factors are 5,7,11,13. </p>
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<h3>4.Is 34212 a multiple of 12?</h3>
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<h3>4.Is 34212 a multiple of 12?</h3>
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<p>34212 is when divided by 12 the<a>quotient</a>will be 2851 and the remainder will be zero. Hence, 34212 is the multiple of 2. </p>
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<p>34212 is when divided by 12 the<a>quotient</a>will be 2851 and the remainder will be zero. Hence, 34212 is the multiple of 2. </p>
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<h2>Important glossaries for LCM of 3 and 18</h2>
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<h2>Important glossaries for LCM of 3 and 18</h2>
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<ul><li><strong>Co-prime:</strong>two numbers that have only one number that is 1 as their common factor. For example, 8 and 15 are co prime numbers.</li>
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<ul><li><strong>Co-prime:</strong>two numbers that have only one number that is 1 as their common factor. For example, 8 and 15 are co prime numbers.</li>
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</ul><ul><li><strong>Even Number:</strong>A natural number is divisible by 2. For example, 2,4,68,10 etc.</li>
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</ul><ul><li><strong>Even Number:</strong>A natural number is divisible by 2. For example, 2,4,68,10 etc.</li>
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</ul><ul><li><strong>Prime Factorization:</strong>The process of parting down a number into its prime factors is called Prime Factorization. For example, prime factorization of 24 = 2 × 2 × 2 × 3. </li>
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</ul><ul><li><strong>Prime Factorization:</strong>The process of parting down a number into its prime factors is called Prime Factorization. For example, prime factorization of 24 = 2 × 2 × 2 × 3. </li>
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</ul><p>What Are Numbers? 🔢 | Fun Explanation with 🎯 Real-Life Examples for Kids | ✨BrightCHAMPS Math</p>
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</ul><p>What Are Numbers? 🔢 | Fun Explanation with 🎯 Real-Life Examples for Kids | ✨BrightCHAMPS Math</p>
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<h2>Hiralee Lalitkumar Makwana</h2>
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<h2>Hiralee Lalitkumar Makwana</h2>
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<h3>About the Author</h3>
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<h3>About the Author</h3>
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<p>Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.</p>
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<p>Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.</p>
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<h3>Fun Fact</h3>
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<h3>Fun Fact</h3>
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<p>: She loves to read number jokes and games.</p>
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<p>: She loves to read number jokes and games.</p>