Q: What are the prime factors of the number 513,730,525?

 A: 5, 7, 11, 103, 2591

Why are those the prime factors of the number 513,730,525?

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 513,730,525

513,730,525
Factor Arrows
5102,746,105
Factor Arrows
520,549,221
Factor Arrows
72,935,603
Factor Arrows
11266,873
Factor Arrows
1032,591

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:

5, 7, 11, 103, 2591

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 11 x 103 x 2,591 = 513,730,525

This can also be written as 52 x 71 x 111 x 1031 x 2,5911 = 513,730,525

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


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