Q: What are the prime factors of the number 115,584?

 A: 2, 3, 7, 43

Why are those the prime factors of the number 115,584?

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 115,584

115,584
Factor Arrows
257,792
Factor Arrows
228,896
Factor Arrows
214,448
Factor Arrows
27,224
Factor Arrows
23,612
Factor Arrows
21,806
Factor Arrows
2903
Factor Arrows
3301
Factor Arrows
743

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, 7, 43

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 2 x 3 x 7 x 43 = 115,584

This can also be written as 27 x 31 x 71 x 431 = 115,584

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


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