Q: What are the prime factors of the number 170,112?

 A: 2, 3, 443

Why are those the prime factors of the number 170,112?

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 170,112

170,112
Factor Arrows
285,056
Factor Arrows
242,528
Factor Arrows
221,264
Factor Arrows
210,632
Factor Arrows
25,316
Factor Arrows
22,658
Factor Arrows
21,329
Factor Arrows
3443

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, 443

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 443 = 170,112

This can also be written as 27 x 31 x 4431 = 170,112

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


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