Q: What are the prime factors of the number 338,135,700?

 A: 2, 3, 5, 7, 161017

Why are those the prime factors of the number 338,135,700?

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 338,135,700

338,135,700
Factor Arrows
2169,067,850
Factor Arrows
284,533,925
Factor Arrows
328,177,975
Factor Arrows
55,635,595
Factor Arrows
51,127,119
Factor Arrows
7161,017

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, 5, 7, 161017

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 7 x 161,017 = 338,135,700

This can also be written as 22 x 31 x 52 x 71 x 161,0171 = 338,135,700

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


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