Q: What are the prime factors of the number 115,182?

 A: 2, 3, 79

Why are those the prime factors of the number 115,182?

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 115,182

115,182
Factor Arrows
257,591
Factor Arrows
319,197
Factor Arrows
36,399
Factor Arrows
32,133
Factor Arrows
3711
Factor Arrows
3237
Factor Arrows
379

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, 79

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 79 = 115,182

This can also be written as 21 x 36 x 791 = 115,182

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


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