Q: What are the prime factors of the number 332,928?

 A: 2, 3, 17

Why are those the prime factors of the number 332,928?

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 332,928

332,928
Factor Arrows
2166,464
Factor Arrows
283,232
Factor Arrows
241,616
Factor Arrows
220,808
Factor Arrows
210,404
Factor Arrows
25,202
Factor Arrows
22,601
Factor Arrows
3867
Factor Arrows
3289
Factor Arrows
1717

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, 17

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 17 x 17 = 332,928

This can also be written as 27 x 32 x 172 = 332,928

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


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