Q: What are the prime factors of the number 115,105,806?

 A: 2, 3, 157, 13577

Why are those the prime factors of the number 115,105,806?

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 115,105,806

115,105,806
Factor Arrows
257,552,903
Factor Arrows
319,184,301
Factor Arrows
36,394,767
Factor Arrows
32,131,589
Factor Arrows
15713,577

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, 3, 157, 13577

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 157 x 13,577 = 115,105,806

This can also be written as 21 x 33 x 1571 x 13,5771 = 115,105,806

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


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