36175871domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmaller member of a twin prime pair such that the sum sets a record for number of prime divisors (counted with multiplicity).at n=13A086827a(n) = p is the first twin prime (p, p+2) for which p+1 has n prime factors (n>=2, multiplicity counted).at n=19A164291Prime numbersat n=2214355