Find all primes p such that $\frac{2^{p-1}-1}{p}$ is a perfect square.
38498
Find all primes $p$ such that $(2^{p-1}-1)/p$ is a perfect square
147101
Show that if $p>5$ is prime, then $240 \mid (p^4-1)$
126471
At least one prime between $\sqrt{n}$ and $n$?
100913
It is impossible for $(x-1)^2+x^2+(x+1)^2$ to be a perfect square
45454
Pairs of $(p,q)$ such that $p^2 + 1 = 2 q^2$?
93898
Prove that for any prime p, there is a complete set of mod p residues {q1, . . . , qp}, where each qi is prime.
52530
There exists a prime congruent to $m$ mod $p$
155886
let q be an odd prime and p a prime dividing $1+n+\dots+n^{q-1}$
59261
If $n\in\Bbb Z^+$ is not a square, prove exist infinitely many primes $p$ such that $\left(\frac{n}{p}\right)=-1$.
41641
$(n-7)(n+7)=$ some perfect square
118538
Find all integers $x$ such that $x^2+3x+24$ is a perfect square.
121036
Is there any perfect squares that are also binomial coefficients?
100984
Prove that if prime $p$ divide $a_{2k}-2$, then $p$ divide also $a_{2k+1}-1$.
151036
arithmetic progression of primes
71788
Prove existence of multiplicative inverse modulo p when p is prime
73515
Primes Number Theory
137230
Find all pairs of primes $p,q$ such that $pq \mid 2^p +2^q$