Q: What are the prime factors of the number 834,816?

 A: 2, 3, 1087

Why are those the prime factors of the number 834,816?

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 834,816

834,816
Factor Arrows
2417,408
Factor Arrows
2208,704
Factor Arrows
2104,352
Factor Arrows
252,176
Factor Arrows
226,088
Factor Arrows
213,044
Factor Arrows
26,522
Factor Arrows
23,261
Factor Arrows
31,087

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, 1087

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 2 x 3 x 1,087 = 834,816

This can also be written as 28 x 31 x 1,0871 = 834,816

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


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