Q: What are the prime factors of the number 656,591?

 A: 13, 17, 2971

Why are those the prime factors of the number 656,591?

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 656,591

656,591
Factor Arrows
1350,507
Factor Arrows
172,971

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:

13, 17, 2971

We can check our work by multiplying all of the prime factors together: 13 x 17 x 2,971 = 656,591

This can also be written as 131 x 171 x 2,9711 = 656,591

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


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