Q: What are the prime factors of the number 313,123,304?

 A: 2, 13, 37, 81373

Why are those the prime factors of the number 313,123,304?

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 313,123,304

313,123,304
Factor Arrows
2156,561,652
Factor Arrows
278,280,826
Factor Arrows
239,140,413
Factor Arrows
133,010,801
Factor Arrows
3781,373

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, 13, 37, 81373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 37 x 81,373 = 313,123,304

This can also be written as 23 x 131 x 371 x 81,3731 = 313,123,304

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


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