Q: What are the prime factors of the number 116,400?

 A: 2, 3, 5, 97

Why are those the prime factors of the number 116,400?

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 116,400

116,400
Factor Arrows
258,200
Factor Arrows
229,100
Factor Arrows
214,550
Factor Arrows
27,275
Factor Arrows
32,425
Factor Arrows
5485
Factor Arrows
597

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, 3, 5, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 5 x 97 = 116,400

This can also be written as 24 x 31 x 52 x 971 = 116,400

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


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