Q: What are the prime factors of the number 408,924?

 A: 2, 3, 37, 307

Why are those the prime factors of the number 408,924?

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 408,924

408,924
Factor Arrows
2204,462
Factor Arrows
2102,231
Factor Arrows
334,077
Factor Arrows
311,359
Factor Arrows
37307

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, 37, 307

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 37 x 307 = 408,924

This can also be written as 22 x 32 x 371 x 3071 = 408,924

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


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