Q: What are the prime factors of the number 521,118,102?

 A: 2, 3, 17, 1879, 2719

Why are those the prime factors of the number 521,118,102?

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 521,118,102

521,118,102
Factor Arrows
2260,559,051
Factor Arrows
386,853,017
Factor Arrows
175,109,001
Factor Arrows
1,8792,719

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, 17, 1879, 2719

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 1,879 x 2,719 = 521,118,102

This can also be written as 21 x 31 x 171 x 1,8791 x 2,7191 = 521,118,102

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


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