Q: What are the prime factors of the number 166,080?

 A: 2, 3, 5, 173

Why are those the prime factors of the number 166,080?

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 166,080

166,080
Factor Arrows
283,040
Factor Arrows
241,520
Factor Arrows
220,760
Factor Arrows
210,380
Factor Arrows
25,190
Factor Arrows
22,595
Factor Arrows
3865
Factor Arrows
5173

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, 173

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 3 x 5 x 173 = 166,080

This can also be written as 26 x 31 x 51 x 1731 = 166,080

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


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