Q: What are the prime factors of the number 686,824,080?

 A: 2, 3, 5, 2861767

Why are those the prime factors of the number 686,824,080?

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 686,824,080

686,824,080
Factor Arrows
2343,412,040
Factor Arrows
2171,706,020
Factor Arrows
285,853,010
Factor Arrows
242,926,505
Factor Arrows
314,308,835
Factor Arrows
52,861,767

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, 2861767

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 2,861,767 = 686,824,080

This can also be written as 24 x 31 x 51 x 2,861,7671 = 686,824,080

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


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