222222327525
domain: N
Appears in sequences
- a(n) is the first number that is the concatenation of n primes and also the product of n primes (counted with multiplicity).at n=11A374665
- a(n) is the smallest number with n digits, all of which are prime, and n prime factors, counted with multiplicity, or -1 if there is no such number.at n=11A384403