Q: What are the prime factors of the number 631,130,508?

 A: 2, 3, 17, 379, 907

Why are those the prime factors of the number 631,130,508?

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 631,130,508

631,130,508
Factor Arrows
2315,565,254
Factor Arrows
2157,782,627
Factor Arrows
352,594,209
Factor Arrows
317,531,403
Factor Arrows
35,843,801
Factor Arrows
17343,753
Factor Arrows
379907

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, 3, 17, 379, 907

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 17 x 379 x 907 = 631,130,508

This can also be written as 22 x 33 x 171 x 3791 x 9071 = 631,130,508

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


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