Q: What are the prime factors of the number 340,929?

 A: 3, 23, 61

Why are those the prime factors of the number 340,929?

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 340,929

340,929
Factor Arrows
3113,643
Factor Arrows
337,881
Factor Arrows
312,627
Factor Arrows
34,209
Factor Arrows
31,403
Factor Arrows
2361

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, 23, 61

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 23 x 61 = 340,929

This can also be written as 35 x 231 x 611 = 340,929

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


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