Q: What are the prime factors of the number 166,215,312?

 A: 2, 3, 41, 47, 599

Why are those the prime factors of the number 166,215,312?

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 166,215,312

166,215,312
Factor Arrows
283,107,656
Factor Arrows
241,553,828
Factor Arrows
220,776,914
Factor Arrows
210,388,457
Factor Arrows
33,462,819
Factor Arrows
31,154,273
Factor Arrows
4128,153
Factor Arrows
47599

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, 41, 47, 599

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 41 x 47 x 599 = 166,215,312

This can also be written as 24 x 32 x 411 x 471 x 5991 = 166,215,312

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


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