Answer:
1
Step-by-step explanation:
1×30 = 30, 1× 77 = 77.
The greatest common factor of 30 and 77 is 1.
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
