Q: What are the prime factors of the number 315,235,314?

 A: 2, 3, 71, 27407

Why are those the prime factors of the number 315,235,314?

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 315,235,314

315,235,314
Factor Arrows
2157,617,657
Factor Arrows
352,539,219
Factor Arrows
317,513,073
Factor Arrows
35,837,691
Factor Arrows
31,945,897
Factor Arrows
7127,407

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, 71, 27407

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 71 x 27,407 = 315,235,314

This can also be written as 21 x 34 x 711 x 27,4071 = 315,235,314

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


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