Q: What are the prime factors of the number 382,080?

 A: 2, 3, 5, 199

Why are those the prime factors of the number 382,080?

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 382,080

382,080
Factor Arrows
2191,040
Factor Arrows
295,520
Factor Arrows
247,760
Factor Arrows
223,880
Factor Arrows
211,940
Factor Arrows
25,970
Factor Arrows
22,985
Factor Arrows
3995
Factor Arrows
5199

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, 199

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 5 x 199 = 382,080

This can also be written as 27 x 31 x 51 x 1991 = 382,080

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


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