111997

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 31.at n=15A031619
• Decimal prime numbers which can be split into three equal-sized prime parts whose sum is prime. No leading zeros.at n=23A243767
• Primes in A284798.at n=26A372770
• Prime numbersat n=10620