Q: What are the prime factors of the number 170,960?

 A: 2, 5, 2137

Why are those the prime factors of the number 170,960?

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 170,960

170,960
Factor Arrows
285,480
Factor Arrows
242,740
Factor Arrows
221,370
Factor Arrows
210,685
Factor Arrows
52,137

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, 5, 2137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 2,137 = 170,960

This can also be written as 24 x 51 x 2,1371 = 170,960

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


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