Q: What are the prime factors of the number 166,045,248?

 A: 2, 3, 307, 313

Why are those the prime factors of the number 166,045,248?

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 166,045,248

166,045,248
Factor Arrows
283,022,624
Factor Arrows
241,511,312
Factor Arrows
220,755,656
Factor Arrows
210,377,828
Factor Arrows
25,188,914
Factor Arrows
22,594,457
Factor Arrows
3864,819
Factor Arrows
3288,273
Factor Arrows
396,091
Factor Arrows
307313

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, 307, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 307 x 313 = 166,045,248

This can also be written as 26 x 33 x 3071 x 3131 = 166,045,248

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


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