Q: What are the prime factors of the number 323,123,115?

 A: 3, 5, 7, 263, 11701

Why are those the prime factors of the number 323,123,115?

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 323,123,115

323,123,115
Factor Arrows
3107,707,705
Factor Arrows
521,541,541
Factor Arrows
73,077,363
Factor Arrows
26311,701

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, 263, 11701

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 263 x 11,701 = 323,123,115

This can also be written as 31 x 51 x 71 x 2631 x 11,7011 = 323,123,115

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


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