Q: What are the prime factors of the number 315,712?

 A: 2, 4933

Why are those the prime factors of the number 315,712?

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 315,712

315,712
Factor Arrows
2157,856
Factor Arrows
278,928
Factor Arrows
239,464
Factor Arrows
219,732
Factor Arrows
29,866
Factor Arrows
24,933

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, 4933

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 4,933 = 315,712

This can also be written as 26 x 4,9331 = 315,712

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


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