Q: What are the prime factors of the number 717,116,645?

 A: 5, 7, 31, 113, 5849

Why are those the prime factors of the number 717,116,645?

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 717,116,645

717,116,645
Factor Arrows
5143,423,329
Factor Arrows
720,489,047
Factor Arrows
31660,937
Factor Arrows
1135,849

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:

5, 7, 31, 113, 5849

We can check our work by multiplying all of the prime factors together: 5 x 7 x 31 x 113 x 5,849 = 717,116,645

This can also be written as 51 x 71 x 311 x 1131 x 5,8491 = 717,116,645

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


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