Q: What are the prime factors of the number 680,768?

 A: 2, 11, 967

Why are those the prime factors of the number 680,768?

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 680,768

680,768
Factor Arrows
2340,384
Factor Arrows
2170,192
Factor Arrows
285,096
Factor Arrows
242,548
Factor Arrows
221,274
Factor Arrows
210,637
Factor Arrows
11967

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, 11, 967

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 11 x 967 = 680,768

This can also be written as 26 x 111 x 9671 = 680,768

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


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