15 cuz 15x1=15 and 15x5=75
The GCF is 3.
The GCF for 15 and 25 is 5 :)
The GCF of 15 and 27 is 3. The GCF of 15, 20 and 25 is 5. The GCF of 15, 27, 15, 20 and 25 is 1.
The GCF is 5.
The GCF is 5.
GCF(15, 25, 30) = 5.
The GCF is 5.
The GCF is 25.
The GCF is 5.
The GCF is 5.
The GCF is 5.