Q: What are the prime factors of the number 456,489?

 A: 3, 11, 29, 53

Why are those the prime factors of the number 456,489?

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 456,489

456,489
Factor Arrows
3152,163
Factor Arrows
350,721
Factor Arrows
316,907
Factor Arrows
111,537
Factor Arrows
2953

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:

3, 11, 29, 53

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 29 x 53 = 456,489

This can also be written as 33 x 111 x 291 x 531 = 456,489

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


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