Show that one of these numbers is a Square
121717
Prove that $z^2 \equiv ab\pmod p$ is solvable if and only if both or neither of $x^2 \equiv a \pmod p$, $x^2 \equiv b \pmod p$ are solvable.
114863
Representing a given number as the sum of two squares.
27802
How to show this equals 1 without "calculations"
106791
27 squares of side $1$ inside a circle of radius $2$: Show that three squares share an interior point.
136366
Show that if $2+2\sqrt{28n^2+1}$ is an integer then it must be perfect square.
39156
Concerning what is between two consecutive squares.
70376
What do you call the grouping of numbers based on the cardinality of digits in the square they produce?
124374
A bijective function between a square and its side
72666
Prime Numbers And Perfect Squares
134
Prove that the expression is a perfect square
72313
Show that for all real numbers $a$ and $b$, $\,\, ab \le (1/2)(a^2+b^2)$
34491
Is there a way to show that $\sqrt{p_{n}} < n$?
116780
product is twice a square
35864
Playing with numbers form $1$ to $n^2$ in an $n\times n$ grid
20548
General formula to obtain triangular-square numbers
140433
The number of ways of writing an integer as a sum of two squares
127566
$2AB$ is a perfect square and $A+B$ is not a perfect square