How to check if an integer is a perfect square
113511
What's a good algorithm to determine if an input is a perfect square?
134121
Determining all the positive integers $n$ such that $n^4+n^3+n^2+n+1$ is a perfect square.
102154
If $a$ and $b$ are consecutive integers, prove that $a^2 + b^2 + a^2b^2$ is a perfect square.
40525
Fastest way to determine if an integer's square root is an integer
100913
It is impossible for $(x-1)^2+x^2+(x+1)^2$ to be a perfect square
72666
Prime Numbers And Perfect Squares
105564
If $n$ is a positive integer greater than 1 such that $3n+1$ is perfect square, then show that $n+1$ is the sum of three perfect squares.
8034
Can $n!$ be a perfect square when $n$ is an integer greater than $1$?
139466
How to test if a double is an integer
113423
Why Java does not see that Integers are equal?
11506
Alternative proof that $(a^2+b^2)/(ab+1)$ is a square when it's an integer
56724
How do I check that a number is float or integer?
67968
When is $2^n -7$ a perfect square?
33735
The square of an integer is congruent to 0 or 1 mod 4
24937
What's the best way to check if a String represents an integer in Java?
27492
Testing if given number is integer
67899
Integer squares of the form $x^4+x^3+x^2+x+1$