Q: What are the prime factors of the number 15,427,752?

 A: 2, 3, 79, 103

Why are those the prime factors of the number 15,427,752?

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 15,427,752

15,427,752
Factor Arrows
27,713,876
Factor Arrows
23,856,938
Factor Arrows
21,928,469
Factor Arrows
3642,823
Factor Arrows
798,137
Factor Arrows
79103

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, 79, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 79 x 79 x 103 = 15,427,752

This can also be written as 23 x 31 x 792 x 1031 = 15,427,752

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


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