Q: What are the prime factors of the number 343,915?

 A: 5, 11, 13, 37

Why are those the prime factors of the number 343,915?

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 343,915

343,915
Factor Arrows
568,783
Factor Arrows
116,253
Factor Arrows
13481
Factor Arrows
1337

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:

5, 11, 13, 37

We can check our work by multiplying all of the prime factors together: 5 x 11 x 13 x 13 x 37 = 343,915

This can also be written as 51 x 111 x 132 x 371 = 343,915

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


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