Q: What are the prime factors of the number 337,218?

 A: 2, 3, 7, 31, 37

Why are those the prime factors of the number 337,218?

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 337,218

337,218
Factor Arrows
2168,609
Factor Arrows
356,203
Factor Arrows
78,029
Factor Arrows
71,147
Factor Arrows
3137

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, 7, 31, 37

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 31 x 37 = 337,218

This can also be written as 21 x 31 x 72 x 311 x 371 = 337,218

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


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