Q: What are the prime factors of the number 664,135,024?

 A: 2, 7, 163, 5197

Why are those the prime factors of the number 664,135,024?

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 664,135,024

664,135,024
Factor Arrows
2332,067,512
Factor Arrows
2166,033,756
Factor Arrows
283,016,878
Factor Arrows
241,508,439
Factor Arrows
75,929,777
Factor Arrows
7847,111
Factor Arrows
1635,197

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, 7, 163, 5197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 163 x 5,197 = 664,135,024

This can also be written as 24 x 72 x 1631 x 5,1971 = 664,135,024

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


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