Q: What are the prime factors of the number 15,039,684?

 A: 2, 3, 11, 163, 233

Why are those the prime factors of the number 15,039,684?

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 15,039,684

15,039,684
Factor Arrows
27,519,842
Factor Arrows
23,759,921
Factor Arrows
31,253,307
Factor Arrows
3417,769
Factor Arrows
1137,979
Factor Arrows
163233

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, 11, 163, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 163 x 233 = 15,039,684

This can also be written as 22 x 32 x 111 x 1631 x 2331 = 15,039,684

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


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