Q: What are the prime factors of the number 2,811,992?

 A: 2, 313, 1123

Why are those the prime factors of the number 2,811,992?

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 2,811,992

2,811,992
Factor Arrows
21,405,996
Factor Arrows
2702,998
Factor Arrows
2351,499
Factor Arrows
3131,123

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, 313, 1123

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 313 x 1,123 = 2,811,992

This can also be written as 23 x 3131 x 1,1231 = 2,811,992

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


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