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 A208272 Primes containing a digit 2. 9
 2, 23, 29, 127, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 421, 521, 523, 727, 821, 823, 827, 829, 929, 1021, 1123, 1129, 1201, 1213, 1217, 1223, 1229, 1231, 1237, 1249, 1259, 1277, 1279, 1283, 1289, 1291, 1297, 1321, 1327 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Supersequence of A045708. Subsequence of A011532. Complement of A208273 with respect to A011532. Also primes p whose divisors d_k (k = 1, 2; 1 = d_1 < d_2 = p) contain digit equal to number k. Complement of A208275 with respect to A208274. Primes with at least one digit equal to 2. - Harvey P. Dale, Aug 29 2012 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 FORMULA a(n) ~ n log n. - Charles R Greathouse IV, Nov 01 2022 MATHEMATICA Select[Range[2000], PrimeQ[#] && MemberQ[IntegerDigits[#], 2] &] (* T. D. Noe, Mar 06 2012 *) Select[Prime[Range[300]], DigitCount[#, 10, 2]>0&] (* Harvey P. Dale, Aug 29 2012 *) CROSSREFS Cf. A208273 (composites containing a digit 2), A011532 (numbers containing a digit 2). Sequence in context: A084373 A107148 A062653 * A306086 A045708 A090150 Adjacent sequences: A208269 A208270 A208271 * A208273 A208274 A208275 KEYWORD nonn,base AUTHOR Jaroslav Krizek, Mar 04 2012 STATUS approved

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Last modified December 1 14:40 EST 2023. Contains 367476 sequences. (Running on oeis4.)