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The Greatest Common Factor (GCF) is: 1
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∙ 13y ago
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What are the common factors and greatest common factor of 21 and 42?
The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.
What is the greatest common factor of 10 and 21?
The GCF of 10 and 21 is 1. One way to approach this is to look at the difference between 10 and 21, which is 11. The greatest common factor of two numbers cannot be larger than the difference between the two numbers and must be a factor of the difference. The greatest common factor cannot be larger than the smallest number, so it cannot be 11. The only other factor of 11 is 1, so the greatest common factor is 1. Another way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 10 are 1, 2, 5, and 10. The factors of 21 are 1, 3, 7, and 21. The only common factor is 1. Therefore, the greatest common factor is 1, which means the numbers are relatively prime. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 10 are 2 and 5. The prime factors of 21 are 3 and 7. There are no prime factors in common, so the numbers are relatively prime, which means the greatest common factor is 1.
What are the greatest common factors of 21 and 36?
The greatest common factor is 3
What is the greatest common factors of 63 and 147?
The greatest common factor of 63 and 147 is 21.
What are the greatest common factors of 21?
The factors of 21 are 1, 3, 7, and 21. For them to be common, they need to be compared to another set of factors.
What is the greatest common factor bvetween 10 and 21?
Factors of 10: 1, 2, 5, 10Factors of 21: 1, 3, 7, 21GCF (10, 21) = 1
What are the common factors of 14 and 21?
The factors of 14 and 21 are: 14: 1,2,7,14 21:1,3,7,21 The common factors are:1 and 7. Therefore 7 is the greatest common factor (GCF)
What ARE THE common factors and greatest common factors of 21 and 28?
The common factors are 1 and 7. The GCF is 7.
What is the greatest common factors of 15 and 21?
The greatest common factor of 15 and 21 is 3The factors of 15 are: 1, 3, 5, 15The factors of 21 are: 1, 3, 7, 21The common factors are: 1, 3The Greatest Common Factor (GCF) is: 3
What are the greatest common factors of 21 and 18?
The Greatest Common Factor (GCF) is: 3
What are greatest common factors of 14 and 21?
The Greatest Common Factor (GCF) is: 7
Greatest common factors for 21 and 56?
The Greatest Common Factor (GCF) is: 7
