Q: What are the prime factors of the number 125,331,024?

 A: 2, 3, 7, 13, 4099

Why are those the prime factors of the number 125,331,024?

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 125,331,024

125,331,024
Factor Arrows
262,665,512
Factor Arrows
231,332,756
Factor Arrows
215,666,378
Factor Arrows
27,833,189
Factor Arrows
32,611,063
Factor Arrows
7373,009
Factor Arrows
753,287
Factor Arrows
134,099

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, 7, 13, 4099

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 7 x 13 x 4,099 = 125,331,024

This can also be written as 24 x 31 x 72 x 131 x 4,0991 = 125,331,024

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


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