Q: What are the prime factors of the number 12,112,122?

 A: 2, 3, 11, 23, 79, 101

Why are those the prime factors of the number 12,112,122?

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 12,112,122

12,112,122
Factor Arrows
26,056,061
Factor Arrows
32,018,687
Factor Arrows
11183,517
Factor Arrows
237,979
Factor Arrows
79101

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, 11, 23, 79, 101

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 23 x 79 x 101 = 12,112,122

This can also be written as 21 x 31 x 111 x 231 x 791 x 1011 = 12,112,122

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


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