Q: What are the prime factors of the number 680,517?

 A: 3, 83, 911

Why are those the prime factors of the number 680,517?

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 680,517

680,517
Factor Arrows
3226,839
Factor Arrows
375,613
Factor Arrows
83911

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, 83, 911

We can check our work by multiplying all of the prime factors together: 3 x 3 x 83 x 911 = 680,517

This can also be written as 32 x 831 x 9111 = 680,517

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


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