Q: What are the prime factors of the number 11,976,261?

 A: 3, 11, 23, 31, 509

Why are those the prime factors of the number 11,976,261?

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 11,976,261

11,976,261
Factor Arrows
33,992,087
Factor Arrows
11362,917
Factor Arrows
2315,779
Factor Arrows
31509

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, 11, 23, 31, 509

We can check our work by multiplying all of the prime factors together: 3 x 11 x 23 x 31 x 509 = 11,976,261

This can also be written as 31 x 111 x 231 x 311 x 5091 = 11,976,261

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


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