Q: What are the prime factors of the number 792,640?

 A: 2, 5, 2477

Why are those the prime factors of the number 792,640?

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 792,640

792,640
Factor Arrows
2396,320
Factor Arrows
2198,160
Factor Arrows
299,080
Factor Arrows
249,540
Factor Arrows
224,770
Factor Arrows
212,385
Factor Arrows
52,477

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, 5, 2477

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 5 x 2,477 = 792,640

This can also be written as 26 x 51 x 2,4771 = 792,640

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


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