Q: What are the prime factors of the number 814,016?

 A: 2, 7, 23, 79

Why are those the prime factors of the number 814,016?

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 814,016

814,016
Factor Arrows
2407,008
Factor Arrows
2203,504
Factor Arrows
2101,752
Factor Arrows
250,876
Factor Arrows
225,438
Factor Arrows
212,719
Factor Arrows
71,817
Factor Arrows
2379

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, 23, 79

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 7 x 23 x 79 = 814,016

This can also be written as 26 x 71 x 231 x 791 = 814,016

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


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