Q: What are the prime factors of the number 512,387,428?

 A: 2, 7, 29, 311, 2029

Why are those the prime factors of the number 512,387,428?

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 512,387,428

512,387,428
Factor Arrows
2256,193,714
Factor Arrows
2128,096,857
Factor Arrows
718,299,551
Factor Arrows
29631,019
Factor Arrows
3112,029

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, 29, 311, 2029

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 29 x 311 x 2,029 = 512,387,428

This can also be written as 22 x 71 x 291 x 3111 x 2,0291 = 512,387,428

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


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