A264783 Primes that do not divide 2^m - 2293 for any positive integer m.

2, 31, 41, 43, 71, 73, 89, 103, 113, 127, 151, 157, 223, 229, 233, 241, 251, 257, 263, 277, 311, 313, 331, 337, 353, 359, 397, 409, 431, 449, 487, 499, 521, 571, 577, 599, 607, 631, 641, 643, 647, 673, 683, 691, 719, 727, 739, 769, 809, 811, 839, 857, 863, 881, 911, 919, 929, 937, 953, 971, 983, 1009, 1013, 1021, 1031, 1033, 1049, 1051, 1063, 1069, 1087, 1093, 1097, 1103, 1151, 1153, 1163, 1181, 1193, 1201, 1217, 1223, 1231, 1249, 1279, 1289, 1297, 1321, 1327, 1367, 1399, 1409, 1423, 1429, 1433, 1439, 1447

Offset: 1

Author

James R. Buddenhagen, Nov 24 2015

Keywords

• nonn

Links

• Robert Israel, Table of n, a(n) for n = 1..10000
• See some related discussion here: http://math.stackexchange.com/questions/1529814/2i-2293-is-always-composite

Programs

Maple

select(t -> isprime(t) and numtheory:-mlog(2293,2,t) = FAIL, [2,seq(t,t=3..2000,2)]); # Robert Israel, Nov 25 2015