Q: What are the prime factors of the number 426,654,459?

 A: 3, 7, 11, 67, 1021

Why are those the prime factors of the number 426,654,459?

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 426,654,459

426,654,459
Factor Arrows
3142,218,153
Factor Arrows
347,406,051
Factor Arrows
315,802,017
Factor Arrows
35,267,339
Factor Arrows
7752,477
Factor Arrows
1168,407
Factor Arrows
671,021

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, 7, 11, 67, 1021

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 11 x 67 x 1,021 = 426,654,459

This can also be written as 34 x 71 x 111 x 671 x 1,0211 = 426,654,459

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


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