Q: What are the prime factors of the number 17,811,171?

 A: 3, 7, 37, 283

Why are those the prime factors of the number 17,811,171?

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 17,811,171

17,811,171
Factor Arrows
35,937,057
Factor Arrows
31,979,019
Factor Arrows
3659,673
Factor Arrows
3219,891
Factor Arrows
373,297
Factor Arrows
710,471
Factor Arrows
37283

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:

3, 7, 37, 283

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 37 x 283 = 17,811,171

This can also be written as 35 x 71 x 371 x 2831 = 17,811,171

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


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