Q: What are the prime factors of the number 127,360?

 A: 2, 5, 199

Why are those the prime factors of the number 127,360?

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 127,360

127,360
Factor Arrows
263,680
Factor Arrows
231,840
Factor Arrows
215,920
Factor Arrows
27,960
Factor Arrows
23,980
Factor Arrows
21,990
Factor Arrows
2995
Factor Arrows
5199

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, 199

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 5 x 199 = 127,360

This can also be written as 27 x 51 x 1991 = 127,360

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


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