Question

What is the GCF of 84 and 56

Answer 1

Prime factorization for both numbers:

84 = 2*2*3*7

56= 2*2*2*7

prime factors: 2*2*7

answer: 28

Answer 2

Answer:

The GCF is 28

Step-by-step explanation:

Step 1:  Find the factors of both numbers

84 → 1,  2 ,  3 ,  4 ,  6 ,  7 ,  12 ,  14 ,  21 ,  28 ,  42 ,  84

56 → 1 ,  2 ,  4 ,  7 ,  8 ,  14 ,  28 ,  56

The factor that is the biggest common in both is the GCF.  We see that 28 is the biggest factor that matches for both numbers.

Answer:  The GCF is 28