Q: What are the prime factors of the number 126,253,472?

 A: 2, 29, 37, 3677

Why are those the prime factors of the number 126,253,472?

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 126,253,472

126,253,472
Factor Arrows
263,126,736
Factor Arrows
231,563,368
Factor Arrows
215,781,684
Factor Arrows
27,890,842
Factor Arrows
23,945,421
Factor Arrows
29136,049
Factor Arrows
373,677

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, 29, 37, 3677

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 29 x 37 x 3,677 = 126,253,472

This can also be written as 25 x 291 x 371 x 3,6771 = 126,253,472

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


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