Q: What are the prime factors of the number 823,013,555?

 A: 5, 7, 13, 258403

Why are those the prime factors of the number 823,013,555?

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 823,013,555

823,013,555
Factor Arrows
5164,602,711
Factor Arrows
723,514,673
Factor Arrows
73,359,239
Factor Arrows
13258,403

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:

5, 7, 13, 258403

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 13 x 258,403 = 823,013,555

This can also be written as 51 x 72 x 131 x 258,4031 = 823,013,555

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


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