Q: What are the prime factors of the number 126,200?

 A: 2, 5, 631

Why are those the prime factors of the number 126,200?

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 126,200

126,200
Factor Arrows
263,100
Factor Arrows
231,550
Factor Arrows
215,775
Factor Arrows
53,155
Factor Arrows
5631

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, 631

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 631 = 126,200

This can also be written as 23 x 52 x 6311 = 126,200

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


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