Q: What are the prime factors of the number 408,832?

 A: 2, 1597

Why are those the prime factors of the number 408,832?

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 408,832

408,832
Factor Arrows
2204,416
Factor Arrows
2102,208
Factor Arrows
251,104
Factor Arrows
225,552
Factor Arrows
212,776
Factor Arrows
26,388
Factor Arrows
23,194
Factor Arrows
21,597

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, 1597

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 1,597 = 408,832

This can also be written as 28 x 1,5971 = 408,832

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


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