Q: What are the prime factors of the number 637,380?

 A: 2, 3, 5, 3541

Why are those the prime factors of the number 637,380?

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 637,380

637,380
Factor Arrows
2318,690
Factor Arrows
2159,345
Factor Arrows
353,115
Factor Arrows
317,705
Factor Arrows
53,541

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, 5, 3541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 3,541 = 637,380

This can also be written as 22 x 32 x 51 x 3,5411 = 637,380

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


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