\"n\" is an integer, and n^2 < 39. what is the greatest possible value of \"n\" minus the least possible value of \"n\"? th

An integer is a whole number which can either be positive or negative. Hence the numbers are -1,-2,3 to negative infinity or  zero or 1,2,3 to positive infinity. In order to solve the problem, we take the square root of 39.But because the answer is not a whole number alone, we take the nearest number in which its square root is an integer. The answer is 36. Hence the answer here is 6.