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

- Try 1. 1 x 45 = 45, so put these into our factor list.
1 ... 45 - Take 2... no good. 45/2 isn't a whole number. So we skip 2.
- Now take 3. 3 x 15 = 45, so now we put these in our list of factors.
1 3 ... 15 45 - Next try 4... no luck. 45/4 isn't a whole number. So we skip 4.
- Now try 5. 5 x 9 = 45, so put these into our factor list.
1 3 5 ... 9 15 45 - Try 6... no good. 45/6 isn't a whole number. So we skip 6.
- Take 7... no. 45/7 isn't a whole number. So we skip 7.
- Now, since we don't have any more numbers to try, we're done!
1 3 5 9 15 45

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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... Randy Tayler | randytayler@gmail.com