Q: What are the prime factors of the number 125,130,560?

 A: 2, 5, 127, 3079

Why are those the prime factors of the number 125,130,560?

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 125,130,560

125,130,560
Factor Arrows
262,565,280
Factor Arrows
231,282,640
Factor Arrows
215,641,320
Factor Arrows
27,820,660
Factor Arrows
23,910,330
Factor Arrows
21,955,165
Factor Arrows
5391,033
Factor Arrows
1273,079

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, 127, 3079

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 5 x 127 x 3,079 = 125,130,560

This can also be written as 26 x 51 x 1271 x 3,0791 = 125,130,560

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


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