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URL: https://oeis.org/A103203

⇱ A103203 - OEIS


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A103203
Primes which have more primitive roots than any smaller prime.
5
2, 5, 11, 17, 23, 29, 41, 47, 53, 59, 83, 107, 137, 149, 167, 173, 179, 227, 257, 263, 269, 293, 317, 347, 359, 383, 389, 467, 479, 503, 509, 557, 563, 587, 653, 719, 773, 797, 809, 839, 857, 863, 887, 929, 977, 983, 1019, 1049, 1097, 1109, 1187, 1229
OFFSET
1,1
LINKS
PROG
(PARI) my(record=0, r); forprime(p=2, 1500, r=eulerphi(p-1); if(r>record, record=r; print1(p, ", "))) \\ Jeppe Stig Nielsen, Oct 18 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
Don Reble, Mar 19 2005
STATUS
approved