A133433 Records in A133432.

3, 7, 23, 41, 71, 313, 643, 4111, 53173, 107227, 533821, 1373989, 2494381, 95525767, 823766851, 4348468741, 226547941621, 596653488817, 5260410488191

Offset: 1

Author

N. J. A. Sloane, Nov 29 2007

Keywords

• nonn
• hard
• more

Comments

Also with an initial 2, records in A023048. The next term, which exceeds 10^14, is A023048(108) if it is not 0 (i.e., if there does exist a prime whose smallest primitive root is 108, then it is larger than 10^14). - Jianing Song, Aug 01 2018

Links

• Tomás Oliveira e Silva, Least primitive root of prime numbers

Crossrefs

Cf. A023048, A133432.