Q: What are the prime factors of the number 11,392?

 A: 2, 89

Why are those the prime factors of the number 11,392?

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 11,392

11,392
Factor Arrows
25,696
Factor Arrows
22,848
Factor Arrows
21,424
Factor Arrows
2712
Factor Arrows
2356
Factor Arrows
2178
Factor Arrows
289

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, 89

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 2 x 89 = 11,392

This can also be written as 27 x 891 = 11,392

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


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