Q: What are the prime factors of the number 118,218,608?

 A: 2, 19, 233, 1669

Why are those the prime factors of the number 118,218,608?

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 118,218,608

118,218,608
Factor Arrows
259,109,304
Factor Arrows
229,554,652
Factor Arrows
214,777,326
Factor Arrows
27,388,663
Factor Arrows
19388,877
Factor Arrows
2331,669

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, 19, 233, 1669

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 233 x 1,669 = 118,218,608

This can also be written as 24 x 191 x 2331 x 1,6691 = 118,218,608

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


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