Why any square can be written in this form?
122207
Use the Division Algorithm to show the square of any integer is in the form $3k$ or $3k+1$
79864
why does "square one" not take an article?
67899
Integer squares of the form $x^4+x^3+x^2+x+1$
21443
The locker problem - why squares?
19
Why is the square root of a sum not equal to the square root of each its addends?
132734
Can 2018 be written as a sum of two squares? If can, what is the expression?
68092
Does square difference prove that 1 = 2?
125702
There is a square $Q$ consisting of $(0,0), (2,0), (0,2), (2,2)$
23830
Proof that if $p\equiv3\,\left(\mbox{mod 4}\right)$ then $p$ can't be written as a sum of two squares
50615
Expressing a Non Negative Integer as Sums of Two Squares
29099
Let consider a square $10$x$10$ and write in the every unit square the numbers from $1$ to $100$
39135
Representation of integers by ternary quadratic form $x^2+y^2-z^2$
139452
Double square brackets
113511
What's a good algorithm to determine if an input is a perfect square?
46446
What's the difference between dot syntax and square bracket syntax?
48879
Why do mathematicians use single-letter variables?
138259
Proof or disproof that every integer can be written as the sum of a prime and a square.