Q: What are the prime factors of the number 115,511,330?

 A: 2, 5, 11, 43, 24421

Why are those the prime factors of the number 115,511,330?

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 115,511,330

115,511,330
Factor Arrows
257,755,665
Factor Arrows
511,551,133
Factor Arrows
111,050,103
Factor Arrows
4324,421

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, 5, 11, 43, 24421

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 43 x 24,421 = 115,511,330

This can also be written as 21 x 51 x 111 x 431 x 24,4211 = 115,511,330

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


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