Q: What are the prime factors of the number 15,513,082?

 A: 2, 13, 19, 31, 1013

Why are those the prime factors of the number 15,513,082?

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 15,513,082

15,513,082
Factor Arrows
27,756,541
Factor Arrows
13596,657
Factor Arrows
1931,403
Factor Arrows
311,013

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, 13, 19, 31, 1013

We can check our work by multiplying all of the prime factors together: 2 x 13 x 19 x 31 x 1,013 = 15,513,082

This can also be written as 21 x 131 x 191 x 311 x 1,0131 = 15,513,082

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


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