241271

Properties

Appears in sequences

• Primes reached in A037271, or -1 if no such prime exists.at n=19A037272
• 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=31A037274
• Trajectory of 32 under prime factor concatenation procedure.at n=9A037932
• Numbers n such that 151*2^n-1 is prime.at n=10A050617
• Prime numbersat n=21324