Q: What are the prime factors of the number 338,784?

 A: 2, 3, 3529

Why are those the prime factors of the number 338,784?

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 338,784

338,784
Factor Arrows
2169,392
Factor Arrows
284,696
Factor Arrows
242,348
Factor Arrows
221,174
Factor Arrows
210,587
Factor Arrows
33,529

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, 3529

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 3,529 = 338,784

This can also be written as 25 x 31 x 3,5291 = 338,784

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


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