Q: What are the prime factors of the number 664,107,451?

 A: 7, 23, 31, 271, 491

Why are those the prime factors of the number 664,107,451?

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 664,107,451

664,107,451
Factor Arrows
794,872,493
Factor Arrows
234,124,891
Factor Arrows
31133,061
Factor Arrows
271491

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:

7, 23, 31, 271, 491

We can check our work by multiplying all of the prime factors together: 7 x 23 x 31 x 271 x 491 = 664,107,451

This can also be written as 71 x 231 x 311 x 2711 x 4911 = 664,107,451

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


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