Q: What are the prime factors of the number 853,824?

 A: 2, 3, 4447

Why are those the prime factors of the number 853,824?

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 853,824

853,824
Factor Arrows
2426,912
Factor Arrows
2213,456
Factor Arrows
2106,728
Factor Arrows
253,364
Factor Arrows
226,682
Factor Arrows
213,341
Factor Arrows
34,447

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, 4447

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 3 x 4,447 = 853,824

This can also be written as 26 x 31 x 4,4471 = 853,824

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


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