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2 <p>Last updated on<strong>August 5, 2025</strong></p>

3 <p>The Least common multiple (LCM) is the smallest number that is divisible by the numbers 4 and 6. The LCM can be found using the listing multiples method, the prime factorization and/or division methods. LCM helps to solve problems with fractions and scenarios like scheduling or aligning repeating cycle of events.</p>

4 <h2>What is the LCM of 4 and 6?</h2>

5 <h2>How to find the LCM of 4 and 6 ?</h2>

6 <p>There are various methods to find the LCM, Listing method,<a>prime factorization</a>method and<a>division</a>method are explained below;</p>

7 <h3>LCM of 4 and 6 using the Listing Multiples method</h3>

8 <p>The LCM of 4 and 6 can be found using the following steps;</p>

9 <p><strong>Steps:</strong></p>

10 <p>1. Write down the multiples of each number: </p>

11 <ul><li>Multiples of 4 = 4,8,12,16…</li>

12 </ul><ul><li>Multiples of 6 = 6,12,18,24…</li>

13 </ul><p>2. Ascertain the smallest multiple from the listed multiples of 4 and 6. </p>

14 <p>The LCM (Least<a>common multiple</a>) 4 and 6 is 12, i.e.,12 is divisible by 4 and 6 leaving no reminders.</p>

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17 <h3>LCM of 4 and 6 using the Prime Factorization</h3>

16 <h3>LCM of 4 and 6 using the Prime Factorization</h3>

18 <p>The prime<a>factors</a>of each number are written, and then the highest<a>power</a>of the prime factors is multiplied to get the LCM.</p>

17 <p>The prime<a>factors</a>of each number are written, and then the highest<a>power</a>of the prime factors is multiplied to get the LCM.</p>

19 <p><strong>Steps: </strong></p>

18 <p><strong>Steps: </strong></p>

20 <p>1. Find the prime factors of the numbers:</p>

19 <p>1. Find the prime factors of the numbers:</p>

21 <p>Prime factorization of 4 = 2×2</p>

20 <p>Prime factorization of 4 = 2×2</p>

22 <p>Prime factorization of 6 = 2×3</p>

21 <p>Prime factorization of 6 = 2×3</p>

23 <p>2. Take the highest power of each prime factor:</p>

22 <p>2. Take the highest power of each prime factor:</p>

24 <p>- 2,2,3</p>

23 <p>- 2,2,3</p>

25 <p>3. Multiply the ascertained factors to get the LCM: </p>

24 <p>3. Multiply the ascertained factors to get the LCM: </p>

26 <p>LCM (4,12) = 2×2×3 = 12</p>

25 <p>LCM (4,12) = 2×2×3 = 12</p>

27 <h3>LCM of 4 and 6 using the Division Method</h3>

26 <h3>LCM of 4 and 6 using the Division Method</h3>

28 <p>The Division Method involves simultaneously dividing the numbers by their prime factors and multiplying the divisors to get the LCM. </p>

27 <p>The Division Method involves simultaneously dividing the numbers by their prime factors and multiplying the divisors to get the LCM. </p>

29 <p><strong>Steps:</strong></p>

28 <p><strong>Steps:</strong></p>

30 <p>1. Write down the numbers in a row; </p>

29 <p>1. Write down the numbers in a row; </p>

31 <p>2. Divide the row of numbers by a<a>prime number</a>that is evenly divisible into at least one of the given numbers. </p>

30 <p>2. Divide the row of numbers by a<a>prime number</a>that is evenly divisible into at least one of the given numbers. </p>

32 <p>3. Continue dividing the numbers until the last row of the results is ‘1’ and bring down the numbers has not been divisible previously.</p>

31 <p>3. Continue dividing the numbers until the last row of the results is ‘1’ and bring down the numbers has not been divisible previously.</p>

33 <p> </p>

32 <p> </p>

34 <p>4. The LCM of the numbers is the<a>product</a>of the prime numbers in the first column, i.e, </p>

33 <p>4. The LCM of the numbers is the<a>product</a>of the prime numbers in the first column, i.e, </p>

35 <p>2×2×3= 12</p>

34 <p>2×2×3= 12</p>

36 <p>LCM (4,6) = 12</p>

35 <p>LCM (4,6) = 12</p>

37 <h2>Common Mistakes and how to avoid them while finding the LCM of 4 and 6</h2>

36 <h2>Common Mistakes and how to avoid them while finding the LCM of 4 and 6</h2>

38 <p>Listed below are a few commonly made mistakes while attempting to ascertain the LCM of 4 and 6, make a note while practicing.</p>

37 <p>Listed below are a few commonly made mistakes while attempting to ascertain the LCM of 4 and 6, make a note while practicing.</p>

39 <h3>Problem 1</h3>

38 <h3>Problem 1</h3>

40 <p>A vendor sells blueberries in boxes of 4 and cranberries boxes of 6. What is the smallest number of boxes that must be purchased, to have an equal number of the berries ?</p>

39 <p>A vendor sells blueberries in boxes of 4 and cranberries boxes of 6. What is the smallest number of boxes that must be purchased, to have an equal number of the berries ?</p>

41 <p>Okay, lets begin</p>

40 <p>Okay, lets begin</p>

42 <p>The LCM of 4 and 6 is 12.</p>

41 <p>The LCM of 4 and 6 is 12.</p>

43 <h3>Explanation</h3>

42 <h3>Explanation</h3>

44 <p>12 boxes of blueberries and cranberries are to be purchased to have an equal number of each, as the smallest common multiple between the numbers 4 and 6 is 12.</p>

43 <p>12 boxes of blueberries and cranberries are to be purchased to have an equal number of each, as the smallest common multiple between the numbers 4 and 6 is 12.</p>

45 <p>Well explained 👍</p>

44 <p>Well explained 👍</p>

46 <h3>Problem 2</h3>

45 <h3>Problem 2</h3>

47 <p>At a school, two bells ring at 4-minute and 6-minute intervals. If they ring together at 10 AM, when will they ring together again?</p>

46 <p>At a school, two bells ring at 4-minute and 6-minute intervals. If they ring together at 10 AM, when will they ring together again?</p>

48 <p>Okay, lets begin</p>

47 <p>Okay, lets begin</p>

49 <p>The LCM of 4 and 6 is 12.</p>

48 <p>The LCM of 4 and 6 is 12.</p>

50 <h3>Explanation</h3>

49 <h3>Explanation</h3>

51 <p>They will ring together again after 12 minutes, which is at 10:12 AM. The smallest common multiple of 4 and 6 is 12.</p>

50 <p>They will ring together again after 12 minutes, which is at 10:12 AM. The smallest common multiple of 4 and 6 is 12.</p>

52 <p>Well explained 👍</p>

51 <p>Well explained 👍</p>

53 <h3>Problem 3</h3>

52 <h3>Problem 3</h3>

54 <p>Runner A can complete a lap in 4 minutes, and Runner B can complete a lap in 6 minutes. When will runners A and B meet at again?</p>

53 <p>Runner A can complete a lap in 4 minutes, and Runner B can complete a lap in 6 minutes. When will runners A and B meet at again?</p>

55 <p>Okay, lets begin</p>

54 <p>Okay, lets begin</p>

56 <p>LCM of 4 and 6.</p>

55 <p>LCM of 4 and 6.</p>

57 <h3>Explanation</h3>

56 <h3>Explanation</h3>

58 <p>Runners A and B will meet again after 12 minutes, which is the LCM of 4 and 6.</p>

57 <p>Runners A and B will meet again after 12 minutes, which is the LCM of 4 and 6.</p>

59 <p>Well explained 👍</p>

58 <p>Well explained 👍</p>

60 <h3>Problem 4</h3>

59 <h3>Problem 4</h3>

61 <p>Alex and Ben want to share a pizza, but they can’t decide how many slices to cut into. Alex says 4, and Ben says 6. What is the minimum number of slices they can cut the pizza into so that both can have their desired number of slices without leftovers?</p>

60 <p>Alex and Ben want to share a pizza, but they can’t decide how many slices to cut into. Alex says 4, and Ben says 6. What is the minimum number of slices they can cut the pizza into so that both can have their desired number of slices without leftovers?</p>

62 <p>Okay, lets begin</p>

61 <p>Okay, lets begin</p>

63 <p>The LCM of 4 and 6 is 12.</p>

62 <p>The LCM of 4 and 6 is 12.</p>

64 <h3>Explanation</h3>

63 <h3>Explanation</h3>

65 <p>Alex and Ben should cut the pizza into 12 slices, which is the LCM of 4 and 6.</p>

64 <p>Alex and Ben should cut the pizza into 12 slices, which is the LCM of 4 and 6.</p>

66 <p>Well explained 👍</p>

65 <p>Well explained 👍</p>

67 <h2>FAQs on LCM of 4 and 6</h2>

66 <h2>FAQs on LCM of 4 and 6</h2>

68 <h3>1.Why is the LCM of 4 and 6 not simply their product (4 × 6 = 24)?</h3>

67 <h3>1.Why is the LCM of 4 and 6 not simply their product (4 × 6 = 24)?</h3>

69 <p>Multiplying gives you the product of the numbers, in this case,24. LCM, however, is the smallest common multiple that can be ascertained following the methods mentioned above.</p>

68 <p>Multiplying gives you the product of the numbers, in this case,24. LCM, however, is the smallest common multiple that can be ascertained following the methods mentioned above.</p>

70 <h3>2.What is the relationship between the Highest common Factor (HCF) and LCM of 4 and 6?</h3>

69 <h3>2.What is the relationship between the Highest common Factor (HCF) and LCM of 4 and 6?</h3>

71 <p>The relationship between HCF and LCM is expressed by the<a>formula</a>: </p>

70 <p>The relationship between HCF and LCM is expressed by the<a>formula</a>: </p>

72 <p>LCM(a, b)×HCF(a, b)=a×b</p>

71 <p>LCM(a, b)×HCF(a, b)=a×b</p>

73 <p>Verifying this, </p>

72 <p>Verifying this, </p>

74 <p>LCM(4,6)×HCF(4,6)=4×6</p>

73 <p>LCM(4,6)×HCF(4,6)=4×6</p>

75 <p>12×2=4×6 -> 24=24 </p>

74 <p>12×2=4×6 -> 24=24 </p>

76 <p>This formula shows how the HCF and LCM complement each other.</p>

75 <p>This formula shows how the HCF and LCM complement each other.</p>

77 <h3>3.What is the relationship of the LCM and the HCF between the digits 4 and 6? Elaborate using a formula?</h3>

76 <h3>3.What is the relationship of the LCM and the HCF between the digits 4 and 6? Elaborate using a formula?</h3>

78 <p>The formula expressed below elaborates on the relationship between the HCF and LCM of the numbers; </p>

77 <p>The formula expressed below elaborates on the relationship between the HCF and LCM of the numbers; </p>

79 <p>LCM(a, b) = a×b/HCF(a, b) </p>

78 <p>LCM(a, b) = a×b/HCF(a, b) </p>

80 <p>a=4, b=6</p>

79 <p>a=4, b=6</p>

81 <p>Derive the HCF of the digits, i.e, 2</p>

80 <p>Derive the HCF of the digits, i.e, 2</p>

82 <p>Using the above formula; LCM(4,6) = 4×6/2= 24/2 = 12</p>

81 <p>Using the above formula; LCM(4,6) = 4×6/2= 24/2 = 12</p>

83 <p>The LCM of the digits 4 and 6 is 12.</p>

82 <p>The LCM of the digits 4 and 6 is 12.</p>

84 <h2>Important glossaries for LCM of 4 and 6</h2>

83 <h2>Important glossaries for LCM of 4 and 6</h2>

85 <ul><li><strong>Multiple:</strong>A number and any integer multiplied. </li>

84 <ul><li><strong>Multiple:</strong>A number and any integer multiplied. </li>

86 </ul><ul><li><strong>Prime Factor:</strong>A natural number (other than 1) that has factors that are one and itself.</li>

85 </ul><ul><li><strong>Prime Factor:</strong>A natural number (other than 1) that has factors that are one and itself.</li>

87 </ul><ul><li><strong>Prime Factorization:</strong>The process of breaking down a number into its prime factors is called Prime Factorization. </li>

86 </ul><ul><li><strong>Prime Factorization:</strong>The process of breaking down a number into its prime factors is called Prime Factorization. </li>

88 </ul><ul><li><strong>Co-prime numbers:</strong>When the only positive integer that is a divisor of them both is 1, a number is co-prime. </li>

87 </ul><ul><li><strong>Co-prime numbers:</strong>When the only positive integer that is a divisor of them both is 1, a number is co-prime. </li>

89 </ul><ul><li><strong>Relatively Prime Numbers:</strong>Numbers that have no common factors other than 1.</li>

88 </ul><ul><li><strong>Relatively Prime Numbers:</strong>Numbers that have no common factors other than 1.</li>

90 </ul><ul><li><strong>Fraction:</strong>A representation of a part of a whole.</li>

89 </ul><ul><li><strong>Fraction:</strong>A representation of a part of a whole.</li>

91 </ul><p>What Are Numbers? 🔢 | Fun Explanation with 🎯 Real-Life Examples for Kids | ✨BrightCHAMPS Math</p>

90 </ul><p>What Are Numbers? 🔢 | Fun Explanation with 🎯 Real-Life Examples for Kids | ✨BrightCHAMPS Math</p>

92 <p>▶</p>

91 <p>▶</p>

93 <h2>Hiralee Lalitkumar Makwana</h2>

92 <h2>Hiralee Lalitkumar Makwana</h2>

94 <h3>About the Author</h3>

93 <h3>About the Author</h3>

95 <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>

94 <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>

96 <h3>Fun Fact</h3>

95 <h3>Fun Fact</h3>

97 <p>: She loves to read number jokes and games.</p>

96 <p>: She loves to read number jokes and games.</p>