Study guides

☆☆

Q: What is the gcf of 56 28 and 40 using prime factorization?

Write your answer...

Submit

Still have questions?

Related questions

Whatever you use, you need at least two numbers to find a GCF.

Because 28 and 33 don't share any prime factors. In that case, the GCF is 1.

The GCF of 4, 7, and 28 is 1.The prime factorization of 4 is 2*2.The prime factorization of 7 is 1*7.The prime factorization of 28 is 2*2*7.The have no common factor other than 1, so that is their GCF.

2 x 2 x 7 = 28 2 x 5 x 7 = 70 2 x 7 = 14, the GCF

22 x 7 = 28

28 = 22 x 71

28 14,2 7,2,2

22 x 7 = 28

644

28 = 256

256 = 28

256 = 28.

It is: 420

No. The prime factorization of 28 is 2x2x7.

22 x 7 = 28

22 x 71

The prime factorization of 256 is 28. The square root is 24 or 16.

It is: 2*2*7 = 28

GCF(28, 21) = 7 Steps: Prime factorization of the numbers: 28 = 2 × 2 × 7 21 = 3 × 7 GCF(28, 21) = 7

768 = 28 x 31

It is: 2^2 times 7^1 = 28

First of all both numbers are expressed as the product of primes. Prime factorization of 28 = 2 x 2 x 7 Prime factorization of 38 = 2 x 19 As it can be seen only 2 is common in prime factorization of both numbers. 2 is the only number except 1 that goes into 28 and 38. So, GCF(28, 38) = 2.

The prime factorization is: 22 x 7

28 x 56 = 4,000,000

The GCF of 28 and 44 is 4.The prime factorization of 28 = 7 x 2 x 2The prime factorization of 44 = 11 x 2 x 2GCF = 2 x2GCF = 4