What is the GCF of 3125 and 10000?

The factors of 3125 are:

1, 5, 25, 125, 625, 3125

The factors of 10000 are:

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000

The common factors are:

1, 5, 25, 125, 625

The Greatest Common Factor (GCF) is:

625