Q: What are the prime factors of the number 15,162,210?

 A: 2, 3, 5, 7, 41, 587

Why are those the prime factors of the number 15,162,210?

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 15,162,210

15,162,210
Factor Arrows
27,581,105
Factor Arrows
32,527,035
Factor Arrows
3842,345
Factor Arrows
5168,469
Factor Arrows
724,067
Factor Arrows
41587

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, 5, 7, 41, 587

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 7 x 41 x 587 = 15,162,210

This can also be written as 21 x 32 x 51 x 71 x 411 x 5871 = 15,162,210

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


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