Q: What are the prime factors of the number 111,541,150?

 A: 2, 5, 7, 53, 859

Why are those the prime factors of the number 111,541,150?

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 111,541,150

111,541,150
Factor Arrows
255,770,575
Factor Arrows
511,154,115
Factor Arrows
52,230,823
Factor Arrows
7318,689
Factor Arrows
745,527
Factor Arrows
53859

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, 5, 7, 53, 859

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 7 x 53 x 859 = 111,541,150

This can also be written as 21 x 52 x 72 x 531 x 8591 = 111,541,150

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


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