Q: What are the prime factors of the number 317,168?

 A: 2, 43, 461

Why are those the prime factors of the number 317,168?

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 317,168

317,168
Factor Arrows
2158,584
Factor Arrows
279,292
Factor Arrows
239,646
Factor Arrows
219,823
Factor Arrows
43461

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, 43, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 43 x 461 = 317,168

This can also be written as 24 x 431 x 4611 = 317,168

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


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