Q: What are the prime factors of the number 125,207,552?

 A: 2, 122273

Why are those the prime factors of the number 125,207,552?

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 125,207,552

125,207,552
Factor Arrows
262,603,776
Factor Arrows
231,301,888
Factor Arrows
215,650,944
Factor Arrows
27,825,472
Factor Arrows
23,912,736
Factor Arrows
21,956,368
Factor Arrows
2978,184
Factor Arrows
2489,092
Factor Arrows
2244,546
Factor Arrows
2122,273

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, 122273

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 2 x 2 x 2 x 122,273 = 125,207,552

This can also be written as 210 x 122,2731 = 125,207,552

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


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