Q: What are the prime factors of the number 346,560?

 A: 2, 3, 5, 19

Why are those the prime factors of the number 346,560?

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 346,560

346,560
Factor Arrows
2173,280
Factor Arrows
286,640
Factor Arrows
243,320
Factor Arrows
221,660
Factor Arrows
210,830
Factor Arrows
25,415
Factor Arrows
31,805
Factor Arrows
5361
Factor Arrows
1919

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, 5, 19

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 3 x 5 x 19 x 19 = 346,560

This can also be written as 26 x 31 x 51 x 192 = 346,560

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


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