Q: What are the prime factors of the number 261,063?

 A: 3, 11, 293

Why are those the prime factors of the number 261,063?

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 261,063

261,063
Factor Arrows
387,021
Factor Arrows
329,007
Factor Arrows
39,669
Factor Arrows
33,223
Factor Arrows
11293

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, 293

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 11 x 293 = 261,063

This can also be written as 34 x 111 x 2931 = 261,063

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


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