113246209

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=25A073919
• a(n) = n-th element of n-th row of triangle shown below.at n=27A115025
• a(n) = smallest prime p such that p-1 and p+1 together have n prime divisors, or a(n) = 0 if no such prime exists.at n=29A155800
• 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=17A267143
• Least number k such that the absolute value of the difference between the number of prime factors, with multiplicity, of k and k-1 is equal to n.at n=24A285787
• 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=23A336773
• Anti-elite primes (A128852) that are not prime factors of Fermat primes (A023394).at n=36A372891
• Prime numbersat n=6478393