Q: What are the prime factors of the number 116,519,200?

 A: 2, 5, 7, 20807

Why are those the prime factors of the number 116,519,200?

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 116,519,200

116,519,200
Factor Arrows
258,259,600
Factor Arrows
229,129,800
Factor Arrows
214,564,900
Factor Arrows
27,282,450
Factor Arrows
23,641,225
Factor Arrows
5728,245
Factor Arrows
5145,649
Factor Arrows
720,807

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, 20807

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 7 x 20,807 = 116,519,200

This can also be written as 25 x 52 x 71 x 20,8071 = 116,519,200

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


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