Q: What are the prime factors of the number 166,624,380?

 A: 2, 3, 5, 13, 31, 2297

Why are those the prime factors of the number 166,624,380?

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 166,624,380

166,624,380
Factor Arrows
283,312,190
Factor Arrows
241,656,095
Factor Arrows
313,885,365
Factor Arrows
34,628,455
Factor Arrows
5925,691
Factor Arrows
1371,207
Factor Arrows
312,297

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, 13, 31, 2297

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 13 x 31 x 2,297 = 166,624,380

This can also be written as 22 x 32 x 51 x 131 x 311 x 2,2971 = 166,624,380

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


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