Was this helpful? Like us!

What Are the Factors of 400?

The factors of 400 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400.

Calcating the factors of 400 is straightforward. 400 and 1 are the easiest two factors to find.


  1. Try 1. 1 x 400 = 400, so put these into our factor list.
    1...400

  2. Take 2. 2 x 200 = 400, which means we add these to our factor list.
    12...200400

  3. Now take 3... no. 400/3 isn't a whole number. So we skip 3.

  4. Next try 4. 4 x 100 = 400, so we add these to our list of factors.
    124...100200400

  5. Now try 5. 5 x 80 = 400, so put these into our factor list.
    1245...80100200400

  6. Try 6... no good. 400/6 isn't a whole number. So we skip 6.

  7. Take 7... no. 400/7 isn't a whole number. So we skip 7.

  8. Now take 8. 8 x 50 = 400, so we add these to our list of factors.
    12458...5080100200400

  9. Next try 9... nope! 400/9 isn't a whole number. So we skip 9.

  10. Now try 10. 10 x 40 = 400, which means we add these to our factor list.
    1245810...405080100200400

  11. Try 11... no. 400/11 isn't a whole number. So we skip 11.

  12. Take 12... no luck. 400/12 isn't a whole number. So we skip 12.

  13. Now take 13... nope! 400/13 isn't a whole number. So we skip 13.

  14. Next try 14... no good. 400/14 isn't a whole number. So we skip 14.

  15. Now try 15... no. 400/15 isn't a whole number. So we skip 15.

  16. Try 16. 16 x 25 = 400, so we add these to our list of factors.
    124581016...25405080100200400

  17. Take 17... nope! 400/17 isn't a whole number. So we skip 17.

  18. Now take 18... no good. 400/18 isn't a whole number. So we skip 18.

  19. Next try 19... no. 400/19 isn't a whole number. So we skip 19.

  20. Now try 20. 20 x 20 = 400, so we add it to our list of factors. There are no numbers between 20 and itself, so we can stop.
    1245810162025405080100200400



Try another number:

Need help finding the factors of 400? It's easy! Here you go: the factors of 400 are 1, 2, 4, 5, 8, 10, 16, 20... | randytayler@gmail.com