Q: What are the prime factors of the number 316,521,317?

 A: 7, 17, 619, 4297

Why are those the prime factors of the number 316,521,317?

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 316,521,317

316,521,317
Factor Arrows
745,217,331
Factor Arrows
172,659,843
Factor Arrows
6194,297

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:

7, 17, 619, 4297

We can check our work by multiplying all of the prime factors together: 7 x 17 x 619 x 4,297 = 316,521,317

This can also be written as 71 x 171 x 6191 x 4,2971 = 316,521,317

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


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