Q: What are the prime factors of the number 166,425,180?

 A: 2, 3, 5, 19, 145987

Why are those the prime factors of the number 166,425,180?

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 166,425,180

166,425,180
Factor Arrows
283,212,590
Factor Arrows
241,606,295
Factor Arrows
313,868,765
Factor Arrows
52,773,753
Factor Arrows
19145,987

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, 19, 145987

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 19 x 145,987 = 166,425,180

This can also be written as 22 x 31 x 51 x 191 x 145,9871 = 166,425,180

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


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