71129

Properties

Appears in sequences

• Primes reached in A037271, or -1 if no such prime exists.at n=23A037272
• Home primes: for n >= 2, a(n) = the prime that is finally reached when you start with n, concatenate its prime factors (A037276) and repeat until a prime is reached (a(n) = -1 if no prime is ever reached).at n=35A037274
• Trajectory of 36 under prime factor concatenation procedure.at n=8A037935
• Primes that are a concatenation of 7, 11 and a prime.at n=1A101250
• Home primes whose homeliness is 5.at n=30A133964
• Primes p1 such that p1^3+p2^2=pp are average of twin primes. p1 and p2 consecutive primes, p1 < p2.at n=39A138735
• Primes obtained from other primes by prefixing a 7.at n=41A167187
• a(n) is the least prime > a(n-2) such that a(n-1)+a(n) is a square.at n=41A359582
• Prime numbersat n=7042