Q: What are the prime factors of the number 509,664?

 A: 2, 3, 5309

Why are those the prime factors of the number 509,664?

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 509,664

509,664
Factor Arrows
2254,832
Factor Arrows
2127,416
Factor Arrows
263,708
Factor Arrows
231,854
Factor Arrows
215,927
Factor Arrows
35,309

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, 3, 5309

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5,309 = 509,664

This can also be written as 25 x 31 x 5,3091 = 509,664

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


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