Q: What are the prime factors of the number 316,521,312?

 A: 2, 3, 29, 41, 47, 59

Why are those the prime factors of the number 316,521,312?

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 316,521,312

316,521,312
Factor Arrows
2158,260,656
Factor Arrows
279,130,328
Factor Arrows
239,565,164
Factor Arrows
219,782,582
Factor Arrows
29,891,291
Factor Arrows
33,297,097
Factor Arrows
29113,693
Factor Arrows
412,773
Factor Arrows
4759

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, 3, 29, 41, 47, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 29 x 41 x 47 x 59 = 316,521,312

This can also be written as 25 x 31 x 291 x 411 x 471 x 591 = 316,521,312

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


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