GCD: 1
GCD: 75
GCD: 13
25.
The GCF is 15.
GCD: 1
15 fifteen
15
The GCF is 3.
15
use your calculator
GCD is greatest common divisor.we will write numbers in the form of their multiples.so 75=5x5x390=5x3x3x2so we have (5x3) common in both. so the ans is 5x3=15 :-)
The GCF is 13.