The factors of 15 are 1, 3, 5, 15.
Calcating the factors of 15 is straightforward. 1 and 15 are the first two factors.
- Try 1. 1 x 15 = 15, so put these into our factor list.
- Take 2... no good. 15/2 isn't a whole number. So we skip 2.
- Now take 3. 3 x 5 = 15, so now we put these in our list of factors.
- Next try 4... no luck. 15/4 isn't a whole number. So we skip 4.
- Now, since we don't have any more numbers to try, we're done!
What are the prime factors of 15? What is the prime factorization of 15?
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