Q: What are the prime factors of the number 125,082,240?

 A: 2, 3, 5, 65147

Why are those the prime factors of the number 125,082,240?

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 125,082,240

125,082,240
Factor Arrows
262,541,120
Factor Arrows
231,270,560
Factor Arrows
215,635,280
Factor Arrows
27,817,640
Factor Arrows
23,908,820
Factor Arrows
21,954,410
Factor Arrows
2977,205
Factor Arrows
3325,735
Factor Arrows
565,147

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, 65147

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 5 x 65,147 = 125,082,240

This can also be written as 27 x 31 x 51 x 65,1471 = 125,082,240

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


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