primes of the form $4k+3$ and sums of squares
46606
Can an integer of the form $4n+3$ written as a sum of two squares?
82636
Maybe is right $\frac{n^2 + 1}{4k + 3} \notin \mathbb{Z}, n, k \in \mathbb{N}^{+}$
73515
Primes Number Theory
22023
Infinitely number of primes in the form $4n+1$ proof
22441
Does the sum of reciprocals of primes converge?
82482
Proving an infinite number of primes of the form 6n+1
129755
Weighted sum of squares, in a finite field
117516
Prime trios of the form $p$,$p+2$,$p+4$
8710
Bounds for $n$-th prime
2264
Conjecture: the sequence of sums of all consecutive primes contains an infinite number of primes
131625
Expressing an integer as the sum of three squares
17660
Show that the odd prime divisors of $n^2+n+1$ are of form $6k+1$ (exclude 3)
75318
How do you prove that a prime is the sum of two squares iff it is congruent to 1 mod 4?
119282
If $a_1,a_2,\ldots, a_n$ are distinct primes, and $a_1=2$, and $n>1$, then $a_1a_2\cdots a_n+1$ is of the form $4k+3$.
20285
How to sum over primes
57275
On the primality of integers of the form $p^2+k$
6700
An Olympiad problem in prime numbers :can we proof that "n" is prime in this case "