Q: What are the prime factors of the number 12,117,553?

 A: 7, 67, 3691

Why are those the prime factors of the number 12,117,553?

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 12,117,553

12,117,553
Factor Arrows
71,731,079
Factor Arrows
7247,297
Factor Arrows
673,691

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:

7, 67, 3691

We can check our work by multiplying all of the prime factors together: 7 x 7 x 67 x 3,691 = 12,117,553

This can also be written as 72 x 671 x 3,6911 = 12,117,553

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


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