Q: What are the prime factors of the number 11,232?

 A: 2, 3, 13

Why are those the prime factors of the number 11,232?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 11,232

11,232
Factor Arrows
25,616
Factor Arrows
22,808
Factor Arrows
21,404
Factor Arrows
2702
Factor Arrows
2351
Factor Arrows
3117
Factor Arrows
339
Factor Arrows
313

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 13 = 11,232

This can also be written as 25 x 33 x 131 = 11,232

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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