Q: What are the prime factors of the number 682,272?

 A: 2, 3, 23, 103

Why are those the prime factors of the number 682,272?

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 682,272

682,272
Factor Arrows
2341,136
Factor Arrows
2170,568
Factor Arrows
285,284
Factor Arrows
242,642
Factor Arrows
221,321
Factor Arrows
37,107
Factor Arrows
32,369
Factor Arrows
23103

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, 23, 103

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 3 x 23 x 103 = 682,272

This can also be written as 25 x 32 x 231 x 1031 = 682,272

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


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