Q: What are the prime factors of the number 13,211,016?

 A: 2, 3, 7, 13, 23, 263

Why are those the prime factors of the number 13,211,016?

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 13,211,016

13,211,016
Factor Arrows
26,605,508
Factor Arrows
23,302,754
Factor Arrows
21,651,377
Factor Arrows
3550,459
Factor Arrows
778,637
Factor Arrows
136,049
Factor Arrows
23263

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, 23, 263

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 13 x 23 x 263 = 13,211,016

This can also be written as 23 x 31 x 71 x 131 x 231 x 2631 = 13,211,016

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


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