Greatest common factor of 30 and 77

1

Step-by-step explanation:

Find the prime factorization of 30

30 = 2 * 3 * 5

Find the prime factorization of 77

77 = 7 * 11

To find the gcf, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

1

Step-by-step explanation:

1*30 = 30, 1 * 77 = 77.

The greatest common factor of 30 and 77 is 1.