Q: What are the prime factors of the number 514,816?

 A: 2, 2011

Why are those the prime factors of the number 514,816?

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 514,816

514,816
Factor Arrows
2257,408
Factor Arrows
2128,704
Factor Arrows
264,352
Factor Arrows
232,176
Factor Arrows
216,088
Factor Arrows
28,044
Factor Arrows
24,022
Factor Arrows
22,011

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, 2011

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 2,011 = 514,816

This can also be written as 28 x 2,0111 = 514,816

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


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