Q: What are the prime factors of the number 823,264?

 A: 2, 13, 1979

Why are those the prime factors of the number 823,264?

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 823,264

823,264
Factor Arrows
2411,632
Factor Arrows
2205,816
Factor Arrows
2102,908
Factor Arrows
251,454
Factor Arrows
225,727
Factor Arrows
131,979

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, 13, 1979

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 1,979 = 823,264

This can also be written as 25 x 131 x 1,9791 = 823,264

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


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