Q: What are the prime factors of the number 17,660,790?

 A: 2, 3, 5, 7, 17, 97

Why are those the prime factors of the number 17,660,790?

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 17,660,790

17,660,790
Factor Arrows
28,830,395
Factor Arrows
32,943,465
Factor Arrows
3981,155
Factor Arrows
5196,231
Factor Arrows
728,033
Factor Arrows
171,649
Factor Arrows
1797

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, 17, 97

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 7 x 17 x 17 x 97 = 17,660,790

This can also be written as 21 x 32 x 51 x 71 x 172 x 971 = 17,660,790

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


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