Q: What are the prime factors of the number 518,512?

 A: 2, 23, 1409

Why are those the prime factors of the number 518,512?

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 518,512

518,512
Factor Arrows
2259,256
Factor Arrows
2129,628
Factor Arrows
264,814
Factor Arrows
232,407
Factor Arrows
231,409

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, 23, 1409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 1,409 = 518,512

This can also be written as 24 x 231 x 1,4091 = 518,512

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


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