Q: What are the prime factors of the number 338,832?

 A: 2, 3, 13, 181

Why are those the prime factors of the number 338,832?

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 338,832

338,832
Factor Arrows
2169,416
Factor Arrows
284,708
Factor Arrows
242,354
Factor Arrows
221,177
Factor Arrows
37,059
Factor Arrows
32,353
Factor Arrows
13181

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, 13, 181

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 13 x 181 = 338,832

This can also be written as 24 x 32 x 131 x 1811 = 338,832

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


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