Q: What are the prime factors of the number 686,522,837?

 A: 7, 11, 13, 23, 29819

Why are those the prime factors of the number 686,522,837?

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 686,522,837

686,522,837
Factor Arrows
798,074,691
Factor Arrows
118,915,881
Factor Arrows
13685,837
Factor Arrows
2329,819

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:

7, 11, 13, 23, 29819

We can check our work by multiplying all of the prime factors together: 7 x 11 x 13 x 23 x 29,819 = 686,522,837

This can also be written as 71 x 111 x 131 x 231 x 29,8191 = 686,522,837

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


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