Q: What are the prime factors of the number 213,132,315?

 A: 3, 5, 11, 17, 75983

Why are those the prime factors of the number 213,132,315?

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 213,132,315

213,132,315
Factor Arrows
371,044,105
Factor Arrows
514,208,821
Factor Arrows
111,291,711
Factor Arrows
1775,983

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, 17, 75983

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 17 x 75,983 = 213,132,315

This can also be written as 31 x 51 x 111 x 171 x 75,9831 = 213,132,315

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


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