SOLUTION: Can you please help me understand how you find the square root of 78?

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Question 51026: Can you please help me understand how you find the square root of 78?
Answer by darq(90) About Me  (Show Source):
You can put this solution on YOUR website!
first factorize
78:2=39
39:3=13
13:13=1

so we got 2, 3 and 13 factors. if you don't have all the factors with even powers you can not find the exact value of their square root. so let it stay sqrt%2878%29 or sqrt%282%29%2Asqrt%283%29%2Asqrt%2813%29 because there is no way to simplify it.

that's way people call the numbers like sqrt%2878%29 irrational numbers because it is impossible to find an answer as a fraction or an integer.