Q: What are the prime factors of the number 293,664?

 A: 2, 3, 7, 19, 23

Why are those the prime factors of the number 293,664?

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 293,664

293,664
Factor Arrows
2146,832
Factor Arrows
273,416
Factor Arrows
236,708
Factor Arrows
218,354
Factor Arrows
29,177
Factor Arrows
33,059
Factor Arrows
7437
Factor Arrows
1923

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, 19, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 19 x 23 = 293,664

This can also be written as 25 x 31 x 71 x 191 x 231 = 293,664

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


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