102311

Appears in sequences

• Strong pseudoprimes to base 5.at n=17A020231
• Strong pseudoprimes to base 17.at n=35A020243
• Strong pseudoprimes to base 85.at n=34A020311
• Euler pseudoprimes to base 5: composite integers such that abs(5^((n - 1)/2)) == 1 mod n.at n=39A262052
• The "residue" pseudoprimes: odd composite numbers n such that q(n)^((n-1)/2) == 1 (mod n), where base q(n) is the smallest prime quadratic residue modulo n.at n=42A307798
• Base-5 Euler-Jacobi pseudoprimes: odd composite k coprime to 5 such that 5^((k-1)/2) == (5/k) (mod n), where (5/k) is the Jacobi symbol (or Kronecker symbol).at n=29A375914
• Composite numbers k == 1, 9 (mod 10) such that 5^((k-1)/2) == 1 (mod k).at n=28A375915