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What Are the Factors of 45?

The factors of 45 are 1, 3, 5, 9, 15, 45.

Calcating the factors of 45 is straightforward. 1 and 45 are the first two factors.


  1. Try 1. 1 x 45 = 45, so put these into our factor list.
    1...45

  2. Take 2... no good. 45/2 isn't a whole number. So we skip 2.

  3. Now take 3. 3 x 15 = 45, so now we put these in our list of factors.
    13...1545

  4. Next try 4... no luck. 45/4 isn't a whole number. So we skip 4.

  5. Now try 5. 5 x 9 = 45, so put these into our factor list.
    135...91545

  6. Try 6... no good. 45/6 isn't a whole number. So we skip 6.

  7. Take 7... no. 45/7 isn't a whole number. So we skip 7.

  8. Now, since we don't have any more numbers to try, we're done!
    13591545


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Need help finding the factors of 45? It's easy! Here you go: the factors of 45 are 1, 3, 5... | randytayler@gmail.com