Q: What are the prime factors of the number 343,938?

 A: 2, 3, 7, 19, 431

Why are those the prime factors of the number 343,938?

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 343,938

343,938
Factor Arrows
2171,969
Factor Arrows
357,323
Factor Arrows
78,189
Factor Arrows
19431

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, 19, 431

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 19 x 431 = 343,938

This can also be written as 21 x 31 x 71 x 191 x 4311 = 343,938

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


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