Q: What are the prime factors of the number 111,250,625?

 A: 5, 178001

Why are those the prime factors of the number 111,250,625?

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 111,250,625

111,250,625
Factor Arrows
522,250,125
Factor Arrows
54,450,025
Factor Arrows
5890,005
Factor Arrows
5178,001

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:

5, 178001

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 5 x 178,001 = 111,250,625

This can also be written as 54 x 178,0011 = 111,250,625

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


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