What are common factors of 840 and 2000?

Answer 1

The factors of 840 are:

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

The factors of 2000 are:

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

The common factors are:

1, 2, 4, 5, 8, 10, 20, 40

Answer 2

Since 820 is a factor of 16400, all of its factors are common.

Answer 3

The common factors are 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410 and 820.