Q: What are the prime factors of the number 457,425,664?

 A: 2, 17, 105107

Why are those the prime factors of the number 457,425,664?

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 457,425,664

457,425,664
Factor Arrows
2228,712,832
Factor Arrows
2114,356,416
Factor Arrows
257,178,208
Factor Arrows
228,589,104
Factor Arrows
214,294,552
Factor Arrows
27,147,276
Factor Arrows
23,573,638
Factor Arrows
21,786,819
Factor Arrows
17105,107

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, 17, 105107

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 17 x 105,107 = 457,425,664

This can also be written as 28 x 171 x 105,1071 = 457,425,664

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


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