Q: What are the prime factors of the number 12,442,112?

 A: 2, 19, 1279

Why are those the prime factors of the number 12,442,112?

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 12,442,112

12,442,112
Factor Arrows
26,221,056
Factor Arrows
23,110,528
Factor Arrows
21,555,264
Factor Arrows
2777,632
Factor Arrows
2388,816
Factor Arrows
2194,408
Factor Arrows
297,204
Factor Arrows
248,602
Factor Arrows
224,301
Factor Arrows
191,279

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, 19, 1279

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 19 x 1,279 = 12,442,112

This can also be written as 29 x 191 x 1,2791 = 12,442,112

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


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