Q: What are the prime factors of the number 11,162,592?

 A: 2, 3, 7, 113

Why are those the prime factors of the number 11,162,592?

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 11,162,592

11,162,592
Factor Arrows
25,581,296
Factor Arrows
22,790,648
Factor Arrows
21,395,324
Factor Arrows
2697,662
Factor Arrows
2348,831
Factor Arrows
3116,277
Factor Arrows
338,759
Factor Arrows
75,537
Factor Arrows
7791
Factor Arrows
7113

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, 113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 7 x 7 x 113 = 11,162,592

This can also be written as 25 x 32 x 73 x 1131 = 11,162,592

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


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