Q: What are the prime factors of the number 166,821,748?

 A: 2, 17, 19, 129119

Why are those the prime factors of the number 166,821,748?

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 166,821,748

166,821,748
Factor Arrows
283,410,874
Factor Arrows
241,705,437
Factor Arrows
172,453,261
Factor Arrows
19129,119

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, 17, 19, 129119

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 19 x 129,119 = 166,821,748

This can also be written as 22 x 171 x 191 x 129,1191 = 166,821,748

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


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