Q: What are the prime factors of the number 102,160?

 A: 2, 5, 1277

Why are those the prime factors of the number 102,160?

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 102,160

102,160
Factor Arrows
251,080
Factor Arrows
225,540
Factor Arrows
212,770
Factor Arrows
26,385
Factor Arrows
51,277

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, 1277

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 1,277 = 102,160

This can also be written as 24 x 51 x 1,2771 = 102,160

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


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