Q: What are the prime factors of the number 11,031,120?

 A: 2, 3, 5, 5107

Why are those the prime factors of the number 11,031,120?

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 11,031,120

11,031,120
Factor Arrows
25,515,560
Factor Arrows
22,757,780
Factor Arrows
21,378,890
Factor Arrows
2689,445
Factor Arrows
3229,815
Factor Arrows
376,605
Factor Arrows
325,535
Factor Arrows
55,107

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, 5, 5107

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 3 x 5 x 5,107 = 11,031,120

This can also be written as 24 x 33 x 51 x 5,1071 = 11,031,120

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


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