Q: What are the prime factors of the number 406,692?

 A: 2, 3, 11, 13, 79

Why are those the prime factors of the number 406,692?

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 406,692

406,692
Factor Arrows
2203,346
Factor Arrows
2101,673
Factor Arrows
333,891
Factor Arrows
311,297
Factor Arrows
111,027
Factor Arrows
1379

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, 11, 13, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 13 x 79 = 406,692

This can also be written as 22 x 32 x 111 x 131 x 791 = 406,692

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


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