Q: What are the prime factors of the number 111,433,136?

 A: 2, 53, 331, 397

Why are those the prime factors of the number 111,433,136?

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 111,433,136

111,433,136
Factor Arrows
255,716,568
Factor Arrows
227,858,284
Factor Arrows
213,929,142
Factor Arrows
26,964,571
Factor Arrows
53131,407
Factor Arrows
331397

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, 53, 331, 397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 53 x 331 x 397 = 111,433,136

This can also be written as 24 x 531 x 3311 x 3971 = 111,433,136

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


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