Q: What are the prime factors of the number 166,115,238?

 A: 2, 3, 127, 277, 787

Why are those the prime factors of the number 166,115,238?

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 166,115,238

166,115,238
Factor Arrows
283,057,619
Factor Arrows
327,685,873
Factor Arrows
127217,999
Factor Arrows
277787

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, 127, 277, 787

We can check our work by multiplying all of the prime factors together: 2 x 3 x 127 x 277 x 787 = 166,115,238

This can also be written as 21 x 31 x 1271 x 2771 x 7871 = 166,115,238

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


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