Q: What are the prime factors of the number 238,707?

 A: 3, 7, 421

Why are those the prime factors of the number 238,707?

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 238,707

238,707
Factor Arrows
379,569
Factor Arrows
326,523
Factor Arrows
38,841
Factor Arrows
32,947
Factor Arrows
7421

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, 7, 421

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 421 = 238,707

This can also be written as 34 x 71 x 4211 = 238,707

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


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