Prime factorization of $\frac{3^{41} -1}{2}$
92483
Without using prime factorization, find a prime factor of $\frac{(3^{41} -1)}{2}$
71110
Show that we cannot have a prime triplet of the form $p$, $p + 2$, $p + 4$ for $p >3$
25428
Prime numbers of the form $ n^{34} -9$
73515
Primes Number Theory
78342
When is $\phi(n)$ a prime number?
117132
Rationals of the form $\frac{p}{q}$ where $p,q$ are primes in $[a,b]$
119734
Why does prime factorization for LCM work?
75011
Primes of the form $n^2+1$ - hard?
8710
Bounds for $n$-th prime
136947
Simple Mersenne prime divisibility proofs
10861
Let$\ p_n$ be the$\ n$-th prime. Can you give me a proof for$\ \prod_{i=1}^\infty \frac{p_i-1}{p_i}=P\approx \frac{1}{11.0453}$?
38871
How to obtain the complete factorization of $P_n(X)=\frac{(X+i)^{2n+1} - (X-i)^{2n+1}}{2i} = 0$
45144
Another way to write least prime factor.
63893
Prime dividing the binomial coefficients
155452
Prime factorization of square numbers
75378
how to prove this extended prime number theorem?
23606
Prime divisors of the integer $n^2+n-1$ (using the Legendre symbol)