Q: What are the prime factors of the number 12,330,556?

 A: 2, 7, 53, 1187

Why are those the prime factors of the number 12,330,556?

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 12,330,556

12,330,556
Factor Arrows
26,165,278
Factor Arrows
23,082,639
Factor Arrows
7440,377
Factor Arrows
762,911
Factor Arrows
531,187

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, 7, 53, 1187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 53 x 1,187 = 12,330,556

This can also be written as 22 x 72 x 531 x 1,1871 = 12,330,556

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


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