313471

Properties

Appears in sequences

• Prime divisors of solutions to 10^n == 1 (mod n).at n=20A066364
• Primes p such that p-1 and p+1 are divisible by a fifth power.at n=22A089212
• a(n) is the smallest prime p such that the multiplicative order of 10 modulo p is 3^n.at n=6A122787
• Prime numbersat n=27070