Q: What are the prime factors of the number 31,506,508?

 A: 2, 11, 17, 73, 577

Why are those the prime factors of the number 31,506,508?

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 31,506,508

31,506,508
Factor Arrows
215,753,254
Factor Arrows
27,876,627
Factor Arrows
11716,057
Factor Arrows
1742,121
Factor Arrows
73577

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:

2, 11, 17, 73, 577

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 17 x 73 x 577 = 31,506,508

This can also be written as 22 x 111 x 171 x 731 x 5771 = 31,506,508

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


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