Q: What are the prime factors of the number 811,577,676?

 A: 2, 3, 7, 13, 743203

Why are those the prime factors of the number 811,577,676?

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 811,577,676

811,577,676
Factor Arrows
2405,788,838
Factor Arrows
2202,894,419
Factor Arrows
367,631,473
Factor Arrows
79,661,639
Factor Arrows
13743,203

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, 7, 13, 743203

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 13 x 743,203 = 811,577,676

This can also be written as 22 x 31 x 71 x 131 x 743,2031 = 811,577,676

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


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