Q: What are the prime factors of the number 338,217?

 A: 3, 11, 37, 277

Why are those the prime factors of the number 338,217?

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 338,217

338,217
Factor Arrows
3112,739
Factor Arrows
1110,249
Factor Arrows
37277

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:

3, 11, 37, 277

We can check our work by multiplying all of the prime factors together: 3 x 11 x 37 x 277 = 338,217

This can also be written as 31 x 111 x 371 x 2771 = 338,217

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


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