What is the hcf of 400 and 250?

The highest common factor (HCF) of 400 and 250 is 50. To find the HCF, you can list the factors of each number and identify the greatest number they have in common. The factors of 400 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, and 400. The factors of 250 are 1, 2, 5, 10, 25, 50, 125, and 250. The greatest number that appears in both lists is 50, making it the HCF.