Q: What are the prime factors of the number 511,575?

 A: 3, 5, 19, 359

Why are those the prime factors of the number 511,575?

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 511,575

511,575
Factor Arrows
3170,525
Factor Arrows
534,105
Factor Arrows
56,821
Factor Arrows
19359

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:

3, 5, 19, 359

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 19 x 359 = 511,575

This can also be written as 31 x 52 x 191 x 3591 = 511,575

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


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