Q: What are the prime factors of the number 393,336?

 A: 2, 3, 607

Why are those the prime factors of the number 393,336?

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 393,336

393,336
Factor Arrows
2196,668
Factor Arrows
298,334
Factor Arrows
249,167
Factor Arrows
316,389
Factor Arrows
35,463
Factor Arrows
31,821
Factor Arrows
3607

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, 607

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 607 = 393,336

This can also be written as 23 x 34 x 6071 = 393,336

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


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