Q: What are the prime factors of the number 406,764?

 A: 2, 3, 11299

Why are those the prime factors of the number 406,764?

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 406,764

406,764
Factor Arrows
2203,382
Factor Arrows
2101,691
Factor Arrows
333,897
Factor Arrows
311,299

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, 11299

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11,299 = 406,764

This can also be written as 22 x 32 x 11,2991 = 406,764

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


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