Q: What are the prime factors of the number 15,102,936?

 A: 2, 3, 17, 457

Why are those the prime factors of the number 15,102,936?

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 15,102,936

15,102,936
Factor Arrows
27,551,468
Factor Arrows
23,775,734
Factor Arrows
21,887,867
Factor Arrows
3629,289
Factor Arrows
3209,763
Factor Arrows
369,921
Factor Arrows
323,307
Factor Arrows
37,769
Factor Arrows
17457

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, 457

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 17 x 457 = 15,102,936

This can also be written as 23 x 35 x 171 x 4571 = 15,102,936

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


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