22815088913
domain: N
Appears in sequences
- Primes reached in A037271, or -1 if no such prime exists.at n=28A037272
- 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=43A037274
- Trajectory of 44 under prime factor concatenation procedure.at n=25A037939