Searching for a conjecture that is true until the 127 power of n.
5574
Conjectures that have been disproved with extremely large counterexamples?
33866
Show that $n$ does not divide $2^n - 1$ where $n$ is an integer greater than $1$?
12967
Find all $n>1$ such that $\dfrac{2^n+1}{n^2}$ is an integer.
97021
Do there exist two primes $p<q$ such that $p^n-1\mid q^n-1$ for infinitely many $n$?
112599
What is the smallest value of n such that an algorithm running at 100*n^2 operates faster than 2^n ? [How to figure out without brute force]
93805
Is there a good (preferably comprehensive) list of which conjectures imply the Riemann Hypothesis?
132165
"Polynomials" with non-integer exponents
135351
$C(n,p)$: even or odd?
52542
For which odd positive integer $n$ , is it true that $-1$ is not a positive power of $2$ modulo $n$?
113986
Fermat's Last Theorem: implications (there is no new proof)
82808
Do there exist any odd prime powers that can be represented as $n^4+4^n$?
53231
A slightly stronger version of the Goldbach conjecture?
147485
A conjecture about numbers of the form $10^{m}(2^{k}−1)+2^{k-1}−1$, where $m$ is the number of decimal digits of $ 2^{k-1}$.
1895
How to show that $2730\mid n^{13}-n\;\;\forall n\in\mathbb{N}$
8710
Bounds for $n$-th prime
130093
Prove by Induction : $n < 2^n$
52324
Tight bound for $T(n) = T(n^{1/2}) + 1$