Q: What are the prime factors of the number 18,288?

 A: 2, 3, 127

Why are those the prime factors of the number 18,288?

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 18,288

18,288
Factor Arrows
29,144
Factor Arrows
24,572
Factor Arrows
22,286
Factor Arrows
21,143
Factor Arrows
3381
Factor Arrows
3127

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, 127

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 127 = 18,288

This can also be written as 24 x 32 x 1271 = 18,288

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


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