Q: What are the prime factors of the number 32,175?

 A: 3, 5, 11, 13

Why are those the prime factors of the number 32,175?

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 32,175

32,175
Factor Arrows
310,725
Factor Arrows
33,575
Factor Arrows
5715
Factor Arrows
5143
Factor Arrows
1113

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:

3, 5, 11, 13

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 11 x 13 = 32,175

This can also be written as 32 x 52 x 111 x 131 = 32,175

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


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