Q: What are the prime factors of the number 13,222,311?

 A: 3, 17, 107, 2423

Why are those the prime factors of the number 13,222,311?

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 13,222,311

13,222,311
Factor Arrows
34,407,437
Factor Arrows
17259,261
Factor Arrows
1072,423

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, 17, 107, 2423

We can check our work by multiplying all of the prime factors together: 3 x 17 x 107 x 2,423 = 13,222,311

This can also be written as 31 x 171 x 1071 x 2,4231 = 13,222,311

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


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