When $x^2+x+p$ is prime for $x=0$ to $p-2$?
63999
Is the notorious $n^2 + n + 41$ prime generator the last of its type?
131731
Primes that can't be written as sum of two squares. Mod
136310
Prime number in a polynomial expression
65511
Proving the following false: $f(x)=2x+1$ produces a prime number if and only if x is prime
127901
If $x^2+y^2 \equiv 0\pmod{p}$, then $p \equiv 1 \pmod{4}$
5978
Prove that there exists only one prime number of the form $p^2−1$ where $p≥2$ is an integer
44019
Show that for any prime $ p $, there are integers $ x $ and $ y $ such that $ p|(x^{2} + y^{2} + 1) $.
40156
Determine all primes $p$ for which $5$ is a quadratic residue modulo $p$
120147
For what prime numbers $p$ is $x^2+x+1$ irreducible in $\mathbb{F}_p[X]$
75011
Primes of the form $n^2+1$ - hard?
126945
checking if a number is a prime
63702
There is a prime between $n$ and $n^2$, without Bertrand
88656
For $p$ prime, show that $\Phi_{p^n}(x) = 1 + x^{p^{n-1}} + x^{2p^{n-2}} + \dots +x^{(p-1)^{p^n-1}}$
101882
Does this polynomial evaluate to prime number whenever $x$ is a natural number?
63409
If $x^2+ax+b=0$ has a rational root, show that it is in fact an integer
64782
How to prove if $n$ is prime and $n | a^2$ then $n | a$?
152591
For which prime numbers $p$ does the congruence $x^2 + x + 1 \equiv 0 \pmod{p}$ have solutions?