Q: What are the prime factors of the number 13,481,136?

 A: 2, 3, 17, 5507

Why are those the prime factors of the number 13,481,136?

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 13,481,136

13,481,136
Factor Arrows
26,740,568
Factor Arrows
23,370,284
Factor Arrows
21,685,142
Factor Arrows
2842,571
Factor Arrows
3280,857
Factor Arrows
393,619
Factor Arrows
175,507

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, 17, 5507

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 17 x 5,507 = 13,481,136

This can also be written as 24 x 32 x 171 x 5,5071 = 13,481,136

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


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