Q: What are the prime factors of the number 344,064?

 A: 2, 3, 7

Why are those the prime factors of the number 344,064?

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 344,064

344,064
Factor Arrows
2172,032
Factor Arrows
286,016
Factor Arrows
243,008
Factor Arrows
221,504
Factor Arrows
210,752
Factor Arrows
25,376
Factor Arrows
22,688
Factor Arrows
21,344
Factor Arrows
2672
Factor Arrows
2336
Factor Arrows
2168
Factor Arrows
284
Factor Arrows
242
Factor Arrows
221
Factor Arrows
37

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

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 = 344,064

This can also be written as 214 x 31 x 71 = 344,064

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


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