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New posts in square-numbers
Prove that $2^n+3^n $ is never a perfect square
elementary-number-theory
square-numbers
Shortcut to finding the square-root of a perfect-square?
square-numbers
Prove $n! +5$ is not a perfect square for $n\in\mathbb{N}$
number-theory
elementary-number-theory
square-numbers
perfect-squares
Questions on perfect squares
elementary-number-theory
square-numbers
$(a+b)^2+4ab$ and $a^2+b^2$ are both squares
number-theory
elementary-number-theory
square-numbers
A problem about Prime Numbers and Perfect Squares
number-theory
elementary-number-theory
prime-numbers
square-numbers
How to simplify $-\sqrt {16x^2}$ when $x < 0$? [closed]
radicals
square-numbers
Why does this pattern in powers happen? [duplicate]
elementary-number-theory
square-numbers
when is $n!+10$ a perfect square?
number-theory
discrete-mathematics
factorial
square-numbers
Prime Numbers And Perfect Squares
number-theory
elementary-number-theory
prime-numbers
contest-math
square-numbers
If $A^2+B^2=C^2$ with $A$ odd, $A,B,C$ coprime and $A<B<C$, is $B+C$ a square? [closed]
algebra-precalculus
elementary-number-theory
square-numbers
pythagorean-triples
When is the sum of divisors a perfect square?
number-theory
elementary-number-theory
square-numbers
divisor-sum
Discrete math. Finding a perfect square.
discrete-mathematics
square-numbers
Algorithm to find solution to $ax^2 + by^2 = 1$ in a finite field
elementary-number-theory
finite-fields
square-numbers
sums-of-squares
Has anyone heard of this maths formula and where can I find the proof to check my proof is correct? $\sum^n_{i = 1}i + \sum^{n-1}_{i=1}i = n^2$
proof-verification
summation
square-numbers
For any $k \gt 1$, if $n!+k$ is a square then will $n \le k$ always be true?
number-theory
elementary-number-theory
square-numbers
conjectures
If $u_1=1$ and $u_{n+1} = n+\sum_{k=1}^n u_k^2$, then $u_n$ is never a square.
elementary-number-theory
recurrence-relations
square-numbers
Prove $4p-3$ is a square knowing that $n\mid p-1$ and $p\mid n^3-1$, $p$ prime
elementary-number-theory
divisibility
square-numbers
Which triangular numbers are also squares?
elementary-number-theory
diophantine-equations
square-numbers
pell-type-equations
Is it possible to split the natural numbers into a finite number of sets so that no pair of numbers within a set adds up to a square?
elementary-set-theory
square-numbers
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