Q: What are the prime factors of the number 346,749?

 A: 3, 13, 17, 523

Why are those the prime factors of the number 346,749?

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 346,749

346,749
Factor Arrows
3115,583
Factor Arrows
138,891
Factor Arrows
17523

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, 13, 17, 523

We can check our work by multiplying all of the prime factors together: 3 x 13 x 17 x 523 = 346,749

This can also be written as 31 x 131 x 171 x 5231 = 346,749

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


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