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

3 <p>The GCF is the largest number that can divide two or more numbers without leaving any remainder. GCF is used to share items equally, to group or arrange items, and schedule events. In this topic, we will learn about the GCF of 3 and 4.</p>

4 <h2>What is the GCF of 3 and 4?</h2>

5 <p>The<a>greatest common factor</a>of 3 and 4 is 1. The largest<a>divisor</a>of two or more<a>numbers</a>is called the GCF of the number. If two numbers are co-prime, they have no common factors other than 1, so their GCF is 1. The GCF of two numbers cannot be negative because divisors are always positive.</p>

6 <h2>How to find the GCF of 3 and 4?</h2>

7 <p>To find the GCF of 3 and 4, a few methods are described below:</p>

8 <ul><li>Listing Factors</li>

9 </ul><ul><li>Prime Factorization</li>

10 </ul><ul><li>Long Division Method / by Euclidean Algorithm</li>

11 </ul><h3>GCF of 3 and 4 by Using Listing of Factors</h3>

12 <p>Steps to find the GCF of 3 and 4 using the listing of<a>factors</a>:</p>

13 <p><strong>Step 1:</strong>Firstly, list the factors of each number</p>

14 <p>Factors of 3 = 1, 3.</p>

15 <p>Factors of 4 = 1, 2, 4.</p>

16 <p><strong>Step 2:</strong>Now, identify the<a>common factors</a>of them. Common factor of 3 and 4: 1.</p>

17 <p><strong>Step 3:</strong>Choose the largest factor</p>

18 <p>The largest factor that both numbers have is 1.</p>

19 <p>The GCF of 3 and 4 is 1.</p>

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22 <h3>GCF of 3 and 4 Using Prime Factorization</h3>

21 <h3>GCF of 3 and 4 Using Prime Factorization</h3>

23 <p>To find the GCF of 3 and 4 using Prime Factorization Method, follow these steps:</p>

22 <p>To find the GCF of 3 and 4 using Prime Factorization Method, follow these steps:</p>

24 <p><strong>Step 1:</strong>Find the<a>prime factors</a>of each number</p>

23 <p><strong>Step 1:</strong>Find the<a>prime factors</a>of each number</p>

25 <p>Prime Factors of 3: 3 = 3</p>

24 <p>Prime Factors of 3: 3 = 3</p>

26 <p>Prime Factors of 4: 4 = 2 x 2 = 2²</p>

25 <p>Prime Factors of 4: 4 = 2 x 2 = 2²</p>

27 <p><strong>Step 2:</strong>Now, identify the common prime factors There are no common prime factors.</p>

26 <p><strong>Step 2:</strong>Now, identify the common prime factors There are no common prime factors.</p>

28 <p><strong>Step 3:</strong>Multiply the common prime factors.</p>

27 <p><strong>Step 3:</strong>Multiply the common prime factors.</p>

29 <p>Since there are no common prime factors, the GCF is 1.</p>

28 <p>Since there are no common prime factors, the GCF is 1.</p>

30 <p>The Greatest Common Factor of 3 and 4 is 1.</p>

29 <p>The Greatest Common Factor of 3 and 4 is 1.</p>

31 <h3>GCF of 3 and 4 Using Division Method or Euclidean Algorithm Method</h3>

30 <h3>GCF of 3 and 4 Using Division Method or Euclidean Algorithm Method</h3>

32 <p>Find the GCF of 3 and 4 using the<a>division</a>method or Euclidean Algorithm Method. Follow these steps:</p>

31 <p>Find the GCF of 3 and 4 using the<a>division</a>method or Euclidean Algorithm Method. Follow these steps:</p>

33 <p><strong>Step 1:</strong>First, divide the larger number by the smaller number</p>

32 <p><strong>Step 1:</strong>First, divide the larger number by the smaller number</p>

34 <p>Here, divide 4 by 3 4 ÷ 3 = 1 (<a>quotient</a>),</p>

33 <p>Here, divide 4 by 3 4 ÷ 3 = 1 (<a>quotient</a>),</p>

35 <p>The<a>remainder</a>is calculated as 4 - (3×1) = 1</p>

34 <p>The<a>remainder</a>is calculated as 4 - (3×1) = 1</p>

36 <p>The remainder is 1, not zero, so continue the process</p>

35 <p>The remainder is 1, not zero, so continue the process</p>

37 <p><strong>Step 2:</strong>Now divide the previous divisor (3) by the previous remainder (1)</p>

36 <p><strong>Step 2:</strong>Now divide the previous divisor (3) by the previous remainder (1)</p>

38 <p>Divide 3 by 1 3 ÷ 1 = 3 (quotient), remainder = 3 - (1×3) = 0</p>

37 <p>Divide 3 by 1 3 ÷ 1 = 3 (quotient), remainder = 3 - (1×3) = 0</p>

39 <p>The remainder is zero, the divisor will become the GCF.</p>

38 <p>The remainder is zero, the divisor will become the GCF.</p>

40 <p>The GCF of 3 and 4 is 1.</p>

39 <p>The GCF of 3 and 4 is 1.</p>

41 <h2>Common Mistakes and How to Avoid Them in GCF of 3 and 4</h2>

40 <h2>Common Mistakes and How to Avoid Them in GCF of 3 and 4</h2>

42 <p>Finding GCF of 3 and 4 looks simple, but students often make mistakes while calculating the GCF. Here are some common mistakes to be avoided by the students.</p>

41 <p>Finding GCF of 3 and 4 looks simple, but students often make mistakes while calculating the GCF. Here are some common mistakes to be avoided by the students.</p>

43 <h3>Problem 1</h3>

42 <h3>Problem 1</h3>

44 <p>A teacher has 3 apples and 4 oranges. She wants to group them into equal sets, with the largest number of items in each group. How many items will be in each group?</p>

43 <p>A teacher has 3 apples and 4 oranges. She wants to group them into equal sets, with the largest number of items in each group. How many items will be in each group?</p>

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

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

46 <p>We should find the GCF of 3 and 4 GCF of 3 and 4 is 1.</p>

45 <p>We should find the GCF of 3 and 4 GCF of 3 and 4 is 1.</p>

47 <p>There is only 1 item in each group.</p>

46 <p>There is only 1 item in each group.</p>

48 <p>3 ÷ 1 = 3</p>

47 <p>3 ÷ 1 = 3</p>

49 <p>4 ÷ 1 = 4</p>

48 <p>4 ÷ 1 = 4</p>

50 <p>There will be 1 item in each group.</p>

49 <p>There will be 1 item in each group.</p>

51 <h3>Explanation</h3>

50 <h3>Explanation</h3>

52 <p>As the GCF of 3 and 4 is 1, the teacher can make groups with 1 item in each.</p>

51 <p>As the GCF of 3 and 4 is 1, the teacher can make groups with 1 item in each.</p>

53 <p>Each group will contain 1 apple or 1 orange.</p>

52 <p>Each group will contain 1 apple or 1 orange.</p>

54 <p>Well explained 👍</p>

53 <p>Well explained 👍</p>

55 <h3>Problem 2</h3>

54 <h3>Problem 2</h3>

56 <p>A school has 3 red flags and 4 blue flags. They want to arrange them in rows with the same number of flags in each row, using the largest possible number of flags per row. How many flags will be in each row?</p>

55 <p>A school has 3 red flags and 4 blue flags. They want to arrange them in rows with the same number of flags in each row, using the largest possible number of flags per row. How many flags will be in each row?</p>

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

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

58 <p>GCF of 3 and 4 is 1. So each row will have 1 flag.</p>

57 <p>GCF of 3 and 4 is 1. So each row will have 1 flag.</p>

59 <h3>Explanation</h3>

58 <h3>Explanation</h3>

60 <p>There are 3 red and 4 blue flags. To find the total number of flags in each row, we should find the GCF of 3 and 4.</p>

59 <p>There are 3 red and 4 blue flags. To find the total number of flags in each row, we should find the GCF of 3 and 4.</p>

61 <p>There will be 1 flag in each row.</p>

60 <p>There will be 1 flag in each row.</p>

62 <p>Well explained 👍</p>

61 <p>Well explained 👍</p>

63 <h3>Problem 3</h3>

62 <h3>Problem 3</h3>

64 <p>A tailor has 3 meters of red fabric and 4 meters of blue fabric. She wants to cut both fabrics into pieces of equal length, using the longest possible length. What should be the length of each piece?</p>

63 <p>A tailor has 3 meters of red fabric and 4 meters of blue fabric. She wants to cut both fabrics into pieces of equal length, using the longest possible length. What should be the length of each piece?</p>

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

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

66 <p>For calculating the longest equal length, we have to calculate the GCF of 3 and 4</p>

65 <p>For calculating the longest equal length, we have to calculate the GCF of 3 and 4</p>

67 <p>The GCF of 3 and 4 is 1.</p>

66 <p>The GCF of 3 and 4 is 1.</p>

68 <p>Each piece of fabric will be 1 meter long.</p>

67 <p>Each piece of fabric will be 1 meter long.</p>

69 <h3>Explanation</h3>

68 <h3>Explanation</h3>

70 <p>For calculating the longest length of the fabric, we first need to calculate the GCF of 3 and 4, which is 1. The length of each piece of fabric will be 1 meter.</p>

69 <p>For calculating the longest length of the fabric, we first need to calculate the GCF of 3 and 4, which is 1. The length of each piece of fabric will be 1 meter.</p>

71 <p>Well explained 👍</p>

70 <p>Well explained 👍</p>

72 <h3>Problem 4</h3>

71 <h3>Problem 4</h3>

73 <p>A carpenter has two wooden planks, one 3 cm long and the other 4 cm long. He wants to cut them into the longest possible equal pieces, without any wood left over. What should be the length of each piece?</p>

72 <p>A carpenter has two wooden planks, one 3 cm long and the other 4 cm long. He wants to cut them into the longest possible equal pieces, without any wood left over. What should be the length of each piece?</p>

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

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

75 <p>The carpenter needs the longest piece of wood.</p>

74 <p>The carpenter needs the longest piece of wood.</p>

76 <p>GCF of 3 and 4 is 1.</p>

75 <p>GCF of 3 and 4 is 1.</p>

77 <p>The longest length of each piece is 1 cm.</p>

76 <p>The longest length of each piece is 1 cm.</p>

78 <h3>Explanation</h3>

77 <h3>Explanation</h3>

79 <p>To find the longest length of each piece of the two wooden planks, 3 cm and 4 cm, respectively, we have to find the GCF of 3 and 4, which is 1 cm. The longest length of each piece is 1 cm.</p>

78 <p>To find the longest length of each piece of the two wooden planks, 3 cm and 4 cm, respectively, we have to find the GCF of 3 and 4, which is 1 cm. The longest length of each piece is 1 cm.</p>

80 <p>Well explained 👍</p>

79 <p>Well explained 👍</p>

81 <h3>Problem 5</h3>

80 <h3>Problem 5</h3>

82 <p>If the GCF of 3 and ‘a’ is 1, and the LCM is 12. Find ‘a’.</p>

81 <p>If the GCF of 3 and ‘a’ is 1, and the LCM is 12. Find ‘a’.</p>

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

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

84 <p>The value of ‘a’ is 4.</p>

83 <p>The value of ‘a’ is 4.</p>

85 <h3>Explanation</h3>

84 <h3>Explanation</h3>

86 <p>GCF x LCM = product of the numbers</p>

85 <p>GCF x LCM = product of the numbers</p>

87 <p>1 × 12 = 3 × a</p>

86 <p>1 × 12 = 3 × a</p>

88 <p>12 = 3a</p>

87 <p>12 = 3a</p>

89 <p>a = 12 ÷ 3 = 4</p>

88 <p>a = 12 ÷ 3 = 4</p>

90 <p>Well explained 👍</p>

89 <p>Well explained 👍</p>

91 <h2>FAQs on the Greatest Common Factor of 3 and 4</h2>

90 <h2>FAQs on the Greatest Common Factor of 3 and 4</h2>

92 <h3>1.What is the LCM of 3 and 4?</h3>

91 <h3>1.What is the LCM of 3 and 4?</h3>

93 <p>The LCM of 3 and 4 is 12.</p>

92 <p>The LCM of 3 and 4 is 12.</p>

94 <h3>2.Is 3 divisible by 2?</h3>

93 <h3>2.Is 3 divisible by 2?</h3>

95 <p>No, 3 is not divisible by 2 because it is an<a>odd number</a>.</p>

94 <p>No, 3 is not divisible by 2 because it is an<a>odd number</a>.</p>

96 <h3>3.What will be the GCF of any two prime numbers?</h3>

95 <h3>3.What will be the GCF of any two prime numbers?</h3>

97 <p>The only common factor of two<a>prime numbers</a>is 1. Therefore, the GCF of any two prime numbers is 1.</p>

96 <p>The only common factor of two<a>prime numbers</a>is 1. Therefore, the GCF of any two prime numbers is 1.</p>

98 <h3>4.What is the prime factorization of 4?</h3>

97 <h3>4.What is the prime factorization of 4?</h3>

99 <p>The prime factorization of 4 is 2².</p>

98 <p>The prime factorization of 4 is 2².</p>

100 <h3>5.Are 3 and 4 prime numbers?</h3>

99 <h3>5.Are 3 and 4 prime numbers?</h3>

101 <p>No, 3 is a prime number, but 4 is not because 4 has more than two factors.</p>

100 <p>No, 3 is a prime number, but 4 is not because 4 has more than two factors.</p>

102 <h2>Important Glossaries for GCF of 3 and 4</h2>

101 <h2>Important Glossaries for GCF of 3 and 4</h2>

103 <ul><li><strong>Factors:</strong>Numbers that divide a target number completely. For example, the factors of 6 are 1, 2, 3, and 6.</li>

102 <ul><li><strong>Factors:</strong>Numbers that divide a target number completely. For example, the factors of 6 are 1, 2, 3, and 6.</li>

104 </ul><ul><li><strong>Prime Factors:</strong>These are the prime numbers that multiply together to give the original number. For example, the prime factors of 18 are 2 and 3.</li>

103 </ul><ul><li><strong>Prime Factors:</strong>These are the prime numbers that multiply together to give the original number. For example, the prime factors of 18 are 2 and 3.</li>

105 </ul><ul><li><strong>Co-prime</strong>: Two numbers are co-prime if their greatest common factor is 1. For example, 8 and 15 are co-prime.</li>

104 </ul><ul><li><strong>Co-prime</strong>: Two numbers are co-prime if their greatest common factor is 1. For example, 8 and 15 are co-prime.</li>

106 </ul><ul><li><strong>Remainder:</strong>The value left after division when the number cannot be divided evenly. For example, when 10 is divided by 3, the remainder is 1.</li>

105 </ul><ul><li><strong>Remainder:</strong>The value left after division when the number cannot be divided evenly. For example, when 10 is divided by 3, the remainder is 1.</li>

107 </ul><ul><li><strong>LCM:</strong>The smallest common multiple of two or more numbers is termed LCM. For example, the LCM of 3 and 4 is 12.</li>

106 </ul><ul><li><strong>LCM:</strong>The smallest common multiple of two or more numbers is termed LCM. For example, the LCM of 3 and 4 is 12.</li>

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

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

109 <p>▶</p>

108 <p>▶</p>

110 <h2>Hiralee Lalitkumar Makwana</h2>

109 <h2>Hiralee Lalitkumar Makwana</h2>

111 <h3>About the Author</h3>

110 <h3>About the Author</h3>

112 <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>

111 <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>

113 <h3>Fun Fact</h3>

112 <h3>Fun Fact</h3>

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

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