Q: What are the prime factors of the number 829,824?

 A: 2, 3, 2161

Why are those the prime factors of the number 829,824?

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 829,824

829,824
Factor Arrows
2414,912
Factor Arrows
2207,456
Factor Arrows
2103,728
Factor Arrows
251,864
Factor Arrows
225,932
Factor Arrows
212,966
Factor Arrows
26,483
Factor Arrows
32,161

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, 2161

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 2 x 3 x 2,161 = 829,824

This can also be written as 27 x 31 x 2,1611 = 829,824

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


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