Q: What are the prime factors of the number 200,115,198?

 A: 2, 3, 67, 103, 179

Why are those the prime factors of the number 200,115,198?

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 200,115,198

200,115,198
Factor Arrows
2100,057,599
Factor Arrows
333,352,533
Factor Arrows
311,117,511
Factor Arrows
33,705,837
Factor Arrows
31,235,279
Factor Arrows
6718,437
Factor Arrows
103179

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, 67, 103, 179

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 67 x 103 x 179 = 200,115,198

This can also be written as 21 x 34 x 671 x 1031 x 1791 = 200,115,198

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


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