Q: What are the prime factors of the number 11,112,120?

 A: 2, 3, 5, 10289

Why are those the prime factors of the number 11,112,120?

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 11,112,120

11,112,120
Factor Arrows
25,556,060
Factor Arrows
22,778,030
Factor Arrows
21,389,015
Factor Arrows
3463,005
Factor Arrows
3154,335
Factor Arrows
351,445
Factor Arrows
510,289

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, 3, 5, 10289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 10,289 = 11,112,120

This can also be written as 23 x 33 x 51 x 10,2891 = 11,112,120

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


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