Q: What are the prime factors of the number 23,330,160?

 A: 2, 3, 5, 7, 1543

Why are those the prime factors of the number 23,330,160?

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 23,330,160

23,330,160
Factor Arrows
211,665,080
Factor Arrows
25,832,540
Factor Arrows
22,916,270
Factor Arrows
21,458,135
Factor Arrows
3486,045
Factor Arrows
3162,015
Factor Arrows
354,005
Factor Arrows
510,801
Factor Arrows
71,543

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, 7, 1543

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 3 x 5 x 7 x 1,543 = 23,330,160

This can also be written as 24 x 33 x 51 x 71 x 1,5431 = 23,330,160

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


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