Q: What are the prime factors of the number 792,320?

 A: 2, 5, 619

Why are those the prime factors of the number 792,320?

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 792,320

792,320
Factor Arrows
2396,160
Factor Arrows
2198,080
Factor Arrows
299,040
Factor Arrows
249,520
Factor Arrows
224,760
Factor Arrows
212,380
Factor Arrows
26,190
Factor Arrows
23,095
Factor Arrows
5619

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, 619

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 5 x 619 = 792,320

This can also be written as 28 x 51 x 6191 = 792,320

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


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