Q: What are the prime factors of the number 396,684?

 A: 2, 3, 3673

Why are those the prime factors of the number 396,684?

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 396,684

396,684
Factor Arrows
2198,342
Factor Arrows
299,171
Factor Arrows
333,057
Factor Arrows
311,019
Factor Arrows
33,673

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, 3673

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3,673 = 396,684

This can also be written as 22 x 33 x 3,6731 = 396,684

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


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