The greatest common factor of 125 and 500 is 125.
125 5*125 = 625 4*125 = 500
The GCF is 125.
500 250,2 125,2,2 25,5,2,2 5,5,5,2,2
500 250,2 125,2,2 25,5,2,2 5,5,5,2,2
As a product of its prime factors in exponents: 22*53 = 500
500 250,2 125,2,2 25,5,2,2 5,5,5,2,2
1 and 500, 2 and 250, 4 and 125, 5 and 100, 10 and 50, 20 and 25, a total of 6 factor pairs.
The factor pairs of 500 are 1 x 500, 2 x 250, 4 x 125, 5 x 100, 10 x 50, and 20 x 25
5,100 5,2,50 5,2,2,25 5,5,5,2,2
Anything that isn't 1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500
1000 2, 500 2, 2, 250 2, 2, 2, 125 2, 2, 2, 5, 25 2, 2, 2, 5, 5, 5