Q: What are the prime factors of the number 170,655?

 A: 3, 5, 31, 367

Why are those the prime factors of the number 170,655?

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 170,655

170,655
Factor Arrows
356,885
Factor Arrows
511,377
Factor Arrows
31367

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, 5, 31, 367

We can check our work by multiplying all of the prime factors together: 3 x 5 x 31 x 367 = 170,655

This can also be written as 31 x 51 x 311 x 3671 = 170,655

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


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