Q: What are the prime factors of the number 682,320?

 A: 2, 3, 5, 2843

Why are those the prime factors of the number 682,320?

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 682,320

682,320
Factor Arrows
2341,160
Factor Arrows
2170,580
Factor Arrows
285,290
Factor Arrows
242,645
Factor Arrows
314,215
Factor Arrows
52,843

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, 2843

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 2,843 = 682,320

This can also be written as 24 x 31 x 51 x 2,8431 = 682,320

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


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