Q: What are the prime factors of the number 325,185?

 A: 3, 5, 7, 19, 163

Why are those the prime factors of the number 325,185?

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 325,185

325,185
Factor Arrows
3108,395
Factor Arrows
521,679
Factor Arrows
73,097
Factor Arrows
19163

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, 7, 19, 163

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 19 x 163 = 325,185

This can also be written as 31 x 51 x 71 x 191 x 1631 = 325,185

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


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