Q: What are the prime factors of the number 636,816?

 A: 2, 3, 13267

Why are those the prime factors of the number 636,816?

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 636,816

636,816
Factor Arrows
2318,408
Factor Arrows
2159,204
Factor Arrows
279,602
Factor Arrows
239,801
Factor Arrows
313,267

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, 13267

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13,267 = 636,816

This can also be written as 24 x 31 x 13,2671 = 636,816

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


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