Q: What are the prime factors of the number 426,654,464?

 A: 2, 1666619

Why are those the prime factors of the number 426,654,464?

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 426,654,464

426,654,464
Factor Arrows
2213,327,232
Factor Arrows
2106,663,616
Factor Arrows
253,331,808
Factor Arrows
226,665,904
Factor Arrows
213,332,952
Factor Arrows
26,666,476
Factor Arrows
23,333,238
Factor Arrows
21,666,619

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, 1666619

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 1,666,619 = 426,654,464

This can also be written as 28 x 1,666,6191 = 426,654,464

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


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