Q: What are the prime factors of the number 125,225,632?

 A: 2, 7, 43, 13001

Why are those the prime factors of the number 125,225,632?

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 125,225,632

125,225,632
Factor Arrows
262,612,816
Factor Arrows
231,306,408
Factor Arrows
215,653,204
Factor Arrows
27,826,602
Factor Arrows
23,913,301
Factor Arrows
7559,043
Factor Arrows
4313,001

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, 7, 43, 13001

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 43 x 13,001 = 125,225,632

This can also be written as 25 x 71 x 431 x 13,0011 = 125,225,632

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


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