Q: What are the prime factors of the number 11,121,344?

 A: 2, 13, 13367

Why are those the prime factors of the number 11,121,344?

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 11,121,344

11,121,344
Factor Arrows
25,560,672
Factor Arrows
22,780,336
Factor Arrows
21,390,168
Factor Arrows
2695,084
Factor Arrows
2347,542
Factor Arrows
2173,771
Factor Arrows
1313,367

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, 13, 13367

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 13 x 13,367 = 11,121,344

This can also be written as 26 x 131 x 13,3671 = 11,121,344

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


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