Q: What are the prime factors of the number 311,160?

 A: 2, 3, 5, 2593

Why are those the prime factors of the number 311,160?

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 311,160

311,160
Factor Arrows
2155,580
Factor Arrows
277,790
Factor Arrows
238,895
Factor Arrows
312,965
Factor Arrows
52,593

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, 5, 2593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 2,593 = 311,160

This can also be written as 23 x 31 x 51 x 2,5931 = 311,160

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


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