35560009domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that q-p = 150, where q is the next prime after p.at n=6A126724Smaller of two consecutive primes p and q, both ending with 9, such that q - p = 10*n, or -1 if no such primes exist.at n=14A381511Prime numbersat n=2179003