Answer :
Step-by-step explanation:
6
Step 1 write each number as a product of its prime numbers
30=2*3*5
60=2*2*3*5
78=2*3*13
Find the common factors between the stree values in this case it is 2 and 3 then multiply the answer is 6
Step-by-step explanation:
6
Step 1 write each number as a product of its prime numbers
30=2*3*5
60=2*2*3*5
78=2*3*13
Find the common factors between the stree values in this case it is 2 and 3 then multiply the answer is 6