Q: What are the prime factors of the number 396,064?

 A: 2, 12377

Why are those the prime factors of the number 396,064?

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 396,064

396,064
Factor Arrows
2198,032
Factor Arrows
299,016
Factor Arrows
249,508
Factor Arrows
224,754
Factor Arrows
212,377

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, 12377

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 12,377 = 396,064

This can also be written as 25 x 12,3771 = 396,064

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


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