12348030977
domain: N
Appears in sequences
- Minimal 2^n safe-primes: a(n) = 2^n*A051886(n) + 1 (a prime number).at n=29A051900
- a(n) is the least prime p such that p-1 is divisible by 2^n and not by 2^(n+1).at n=29A057775
- Duplicate of A051900.at n=29A084706
- Least prime of the form 1 + p*2^n, where p is an odd prime.at n=28A134854
- Odd prime factors of generalized Fermat numbers of the form 3^(2^m) + 1 with m >= 0.at n=20A273945
- Primes p such that the odd part of p - 1 is upper-bounded by the dyadic valuation of p - 1.at n=27A361180
- a(n) = 2^n*t + 1 where t is the least x such that there exists an r in the range 2 <= r <= x+1 that is coprime to 2^n*x + 1 and has multiplicative order 2^n modulo 2^n*x + 1.at n=28A370879