Q: What are the prime factors of the number 338,261?

 A: 7, 11, 23, 191

Why are those the prime factors of the number 338,261?

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 338,261

338,261
Factor Arrows
748,323
Factor Arrows
114,393
Factor Arrows
23191

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:

7, 11, 23, 191

We can check our work by multiplying all of the prime factors together: 7 x 11 x 23 x 191 = 338,261

This can also be written as 71 x 111 x 231 x 1911 = 338,261

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


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