Q: What are the prime factors of the number 126,437,632?

 A: 2, 493897

Why are those the prime factors of the number 126,437,632?

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 126,437,632

126,437,632
Factor Arrows
263,218,816
Factor Arrows
231,609,408
Factor Arrows
215,804,704
Factor Arrows
27,902,352
Factor Arrows
23,951,176
Factor Arrows
21,975,588
Factor Arrows
2987,794
Factor Arrows
2493,897

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, 493897

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 493,897 = 126,437,632

This can also be written as 28 x 493,8971 = 126,437,632

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


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