Infinitely many primes of the form $16n+1$?
47162
Proving there are infinitely many primes of the form $a2^k+1.$
34692
Prove if $ p$ is a prime of the form $3n+1$, then $p$ is also of the form $6m+1$
1189
Using Fermats prime numbers to prove that there is infinitely many prime numbers
131731
Primes that can't be written as sum of two squares. Mod
84879
Solving infinite sums with primes.
140006
Are there infinitely many primes and non primes of the form $10^n+1$?
24008
Infinitely many primes of the form $\lfloor \sqrt {3} \cdot n \rfloor $?
50995
infinitude of primes that are $11 \bmod 12$
71880
Prove that every prime factor of $12x^2+1$ has the form $6n+1$
36819
Show there are infinitely many primes that are equivalent to 1 mod 8.
93721
Are numbers in which all substrings are primes finite regardless of base?
35821
Infinitely many primes for quadratic residues
105444
Possible values of prime gaps
53525
Infiniteness of non-twin primes.
6700
An Olympiad problem in prime numbers :can we proof that "n" is prime in this case "
62821
Infinitely many primes of the type 5 mod 6.
81250
Infinitude of prime numbers