Q: What are the prime factors of the number 827,792?

 A: 2, 7, 19, 389

Why are those the prime factors of the number 827,792?

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 827,792

827,792
Factor Arrows
2413,896
Factor Arrows
2206,948
Factor Arrows
2103,474
Factor Arrows
251,737
Factor Arrows
77,391
Factor Arrows
19389

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, 7, 19, 389

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 19 x 389 = 827,792

This can also be written as 24 x 71 x 191 x 3891 = 827,792

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


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