Q: What are the prime factors of the number 607,689?

 A: 3, 71, 317

Why are those the prime factors of the number 607,689?

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 607,689

607,689
Factor Arrows
3202,563
Factor Arrows
367,521
Factor Arrows
322,507
Factor Arrows
71317

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:

3, 71, 317

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 71 x 317 = 607,689

This can also be written as 33 x 711 x 3171 = 607,689

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


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