Q: What are the prime factors of the number 16,608?

 A: 2, 3, 173

Why are those the prime factors of the number 16,608?

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 16,608

16,608
Factor Arrows
28,304
Factor Arrows
24,152
Factor Arrows
22,076
Factor Arrows
21,038
Factor Arrows
2519
Factor Arrows
3173

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, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 173 = 16,608

This can also be written as 25 x 31 x 1731 = 16,608

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


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