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New posts in prime-numbers
$x^2+x+1$ is the cube of a prime.
number-theory
prime-numbers
perfect-powers
Fibonacci numbers mod $p$
prime-numbers
modular-arithmetic
finite-fields
fibonacci-numbers
Largest consecutive integers with no prime factors except $2$, $3$ or $5$?
elementary-number-theory
prime-numbers
prime-factorization
Adding digits in this way to primes to obtain another primes
number-theory
elementary-number-theory
prime-numbers
conjectures
Twin Primes by an amateur mathematician
prime-numbers
prime-twins
Numbers that are divisible by the number of primes smaller than them
number-theory
prime-numbers
How to find number of prime numbers between two integers
prime-numbers
Are there infinitely many primes $p$ such that $\frac{(p-1)! +1}{p}$ is prime?
number-theory
prime-numbers
conjectures
Yet another conjecture about primes
prime-numbers
conjectures
experimental-mathematics
An upper bound for $\log \operatorname{rad}(n!)$
number-theory
prime-numbers
analytic-number-theory
Prime with digits reversed is prime?
elementary-number-theory
prime-numbers
Are there number systems or rings in which not every number is a product of primes?
abstract-algebra
number-theory
prime-numbers
German sofa primes: Can both $q$ and $\frac{q^3+1}{2}$ be prime?
elementary-number-theory
prime-numbers
What is the significance of the power of $3$ in the sequence of primes given by $\lfloor A^{3^n}\rfloor ?$
number-theory
prime-numbers
exponentiation
$\require{enclose}\enclose{horizontalstrike}{\rm Greatest}\!$ Least prime factor of $n$ is less than square root of $n$, proof
elementary-number-theory
inequality
prime-numbers
Cardinality of the set of prime numbers
elementary-set-theory
prime-numbers
How to prove that at least one solution to $x^2 + y^2 \equiv -1 \pmod p$ exists? [duplicate]
elementary-number-theory
prime-numbers
Show that for every prime $p$, there is an integer $n$ such that $2^{n}+3^{n}+6^{n}-1$ is divisible by $p$.
number-theory
elementary-number-theory
prime-numbers
modular-arithmetic
congruences
Prove that if $n$ is a composite, then $2^n-1$ is composite. [duplicate]
elementary-number-theory
prime-numbers
Who discovered the first explicit formula for the n-th prime?
number-theory
elementary-number-theory
prime-numbers
math-history
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