The GCF is 15.
15
15
use your calculator
GCD: 75
GCD: 1
GCD(25, 30) = 5
25.
Greatest Common Divisor (GCD) for 5 30 is 5.
Greatest Common Divisor (GCD) for 30 42 is 6.
Greatest Common Divisor (GCD) for 20 30 is 10.
Greatest Common Divisor (GCD) for 30 80 is 10.