Q: What are the prime factors of the number 383,808?

 A: 2, 3, 1999

Why are those the prime factors of the number 383,808?

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 383,808

383,808
Factor Arrows
2191,904
Factor Arrows
295,952
Factor Arrows
247,976
Factor Arrows
223,988
Factor Arrows
211,994
Factor Arrows
25,997
Factor Arrows
31,999

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, 1999

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 3 x 1,999 = 383,808

This can also be written as 26 x 31 x 1,9991 = 383,808

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


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