28311553

Properties

Appears in sequences

• Smallest prime p with bigomega(p-1)=n, where bigomega(m)=A001222(m) is the number of prime divisors of m (counted with multiplicity).at n=23A073919
• 1 + (n+6)*2^(n-1).at n=21A115618
• Prime numbers p such that p^2 - 1 has exactly one distinct prime factor other than 2 and 3.at n=28A215504
• Primes q such that Sum_(q-1; i=1..m) e(i)/p(i) is an integer k, where the prime factorization of n is Product_(n; i=1..m) p(i)^e(i).at n=15A267143
• Primes p such that p-1 and p+1 have two distinct prime factors.at n=25A284037
• a(n) is the least prime of the form 2^j*3^k + 1, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists.at n=21A336773
• Prime powers whose neighbors' greatest odd divisors are powers of primes.at n=40A340815
• Integers K such that PSL_2(K) is a K_4-simple group, i.e., |PSL_2(K)| has 4 distinct prime divisors.at n=41A364003
• Prime numbersat n=1759652