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There is always a GCF, even if it's only 1.

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Q: What if no number is divisible for the greatest common factor?
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What is the greatest common factor of 7 and 48?

The greatest common factor of a prime number(a) and a composite number(b) is 1 if b is not divisible by a.Here, 48 is not divisible by 7. Therefore, GCF(48, 7) = 1.


What is the greatest common factor of 13 26 and 91?

The greatest common factor is 13. Both 26 and 91 are divisible by 13. The greatest common factor cannot be larger than the smallest number, so the greatest common factor in this case is the smallest number - 13, since it is a factor of the other two numbers.


What is the greatest common factor of 37 and 50?

The greatest common factor of a prime and a composite number is 1 if the composite number is not divisible by the prime number. 37 is a prime number and 50 is a composite number. Also, 50 is not divisible by 37 therefore GCF = 1.


What is the Lcms of 5 and 15?

If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).


What is the greatest common factor of 11 and 600?

11 is a prime number, so its only factors are 1 and itself. Since 600 is not divisible by 11, the greatest common factor is 1.


What is the Greatest common factor of 49 and 200?

49 is a compound number; it is only divisible by 1 and itself (49). 49 is not a factor of 200. This automatically means that the greatest common factor of 49 and 200 is 1.


What is the greatest common factor of 5 and 32?

Answer: 1 Since 5 is a prime number, the only possible common factors are 1 and 5. 32 is not divisible by 5, so the only common factor is 1, which is thus the greatest common factor.


What is the greatest common factor of 5 and 18?

Answer: 1 Since 5 is a prime number, the only possible common factors are 1 and 5. Because 18 is not divisible by 5, the only common factor, and thus the greatest common factor, is 1.


What is the greatest common factor of 29 and 73?

The greatest common factor of a prime number & a composite number is 1 if the composite number is not divisible by the prime number. 81(composite number) is not divisible by 29(prime number) so, gcf(29,81) = 1.


What is the greatest common factor of 9 and 24?

The greatest number by which both 24 and 9 are divisible is 3. Therefore, greatest common factor is 3.Alternate method:P.F. of 9 = 3x3P.F. of 24 = 2x2x2x33 is the only prime number which is the factor of both 24 and 9.Therefore, GCF = 3.


What is the greatest common factor of 12 21 and 31?

31 is a prime number meaning it is only divisible by 1 and itself. since 31 is the largest number the only common factor is 1


What are the greatest common factor of 19 and 91?

1. Because 19 is a prime number, and therefore only divisible by 1 and 19, and 91 is not divisible by 19.