Q: What are the prime factors of the number 111,133,408?

 A: 2, 79, 43961

Why are those the prime factors of the number 111,133,408?

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 111,133,408

111,133,408
Factor Arrows
255,566,704
Factor Arrows
227,783,352
Factor Arrows
213,891,676
Factor Arrows
26,945,838
Factor Arrows
23,472,919
Factor Arrows
7943,961

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, 79, 43961

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 79 x 43,961 = 111,133,408

This can also be written as 25 x 791 x 43,9611 = 111,133,408

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


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