Q: What are the prime factors of the number 28,680?

 A: 2, 3, 5, 239

Why are those the prime factors of the number 28,680?

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 28,680

28,680
Factor Arrows
214,340
Factor Arrows
27,170
Factor Arrows
23,585
Factor Arrows
31,195
Factor Arrows
5239

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, 239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 239 = 28,680

This can also be written as 23 x 31 x 51 x 2391 = 28,680

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


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