Q: What are the prime factors of the number 13,072,671?

 A: 3, 23, 2339

Why are those the prime factors of the number 13,072,671?

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 13,072,671

13,072,671
Factor Arrows
34,357,557
Factor Arrows
31,452,519
Factor Arrows
3484,173
Factor Arrows
3161,391
Factor Arrows
353,797
Factor Arrows
232,339

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, 23, 2339

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 23 x 2,339 = 13,072,671

This can also be written as 35 x 231 x 2,3391 = 13,072,671

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


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