Q: What are the prime factors of the number 831,648?

 A: 2, 3, 8663

Why are those the prime factors of the number 831,648?

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 831,648

831,648
Factor Arrows
2415,824
Factor Arrows
2207,912
Factor Arrows
2103,956
Factor Arrows
251,978
Factor Arrows
225,989
Factor Arrows
38,663

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, 8663

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 8,663 = 831,648

This can also be written as 25 x 31 x 8,6631 = 831,648

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


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