Q: What are the prime factors of the number 126,801,185?

 A: 5, 7, 23, 67, 2351

Why are those the prime factors of the number 126,801,185?

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 126,801,185

126,801,185
Factor Arrows
525,360,237
Factor Arrows
73,622,891
Factor Arrows
23157,517
Factor Arrows
672,351

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:

5, 7, 23, 67, 2351

We can check our work by multiplying all of the prime factors together: 5 x 7 x 23 x 67 x 2,351 = 126,801,185

This can also be written as 51 x 71 x 231 x 671 x 2,3511 = 126,801,185

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


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