Q: What are the prime factors of the number 637,812?

 A: 2, 3, 7, 2531

Why are those the prime factors of the number 637,812?

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 637,812

637,812
Factor Arrows
2318,906
Factor Arrows
2159,453
Factor Arrows
353,151
Factor Arrows
317,717
Factor Arrows
72,531

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, 7, 2531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 2,531 = 637,812

This can also be written as 22 x 32 x 71 x 2,5311 = 637,812

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


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