Q: What are the prime factors of the number 507,528?

 A: 2, 3, 7, 19, 53

Why are those the prime factors of the number 507,528?

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 507,528

507,528
Factor Arrows
2253,764
Factor Arrows
2126,882
Factor Arrows
263,441
Factor Arrows
321,147
Factor Arrows
37,049
Factor Arrows
71,007
Factor Arrows
1953

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, 7, 19, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 19 x 53 = 507,528

This can also be written as 23 x 32 x 71 x 191 x 531 = 507,528

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


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