Q: What are the prime factors of the number 822,215,523?

 A: 3, 17, 23, 61, 11491

Why are those the prime factors of the number 822,215,523?

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 822,215,523

822,215,523
Factor Arrows
3274,071,841
Factor Arrows
1716,121,873
Factor Arrows
23700,951
Factor Arrows
6111,491

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:

3, 17, 23, 61, 11491

We can check our work by multiplying all of the prime factors together: 3 x 17 x 23 x 61 x 11,491 = 822,215,523

This can also be written as 31 x 171 x 231 x 611 x 11,4911 = 822,215,523

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


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