Q: What are the prime factors of the number 28,176?

 A: 2, 3, 587

Why are those the prime factors of the number 28,176?

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 28,176

28,176
Factor Arrows
214,088
Factor Arrows
27,044
Factor Arrows
23,522
Factor Arrows
21,761
Factor Arrows
3587

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, 587

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 587 = 28,176

This can also be written as 24 x 31 x 5871 = 28,176

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


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