A069663 Smallest n-digit prime with minimum digit sum.

2, 11, 101, 1021, 10111, 100003, 1000003, 10010101, 101001001, 1000000021, 10000001101, 100000000003, 1000000020001, 10000000001011, 100000000100101, 1000000000100011, 10000000000001101, 100000000000000003

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..100

Example

a(5) = 10111 is the least prime with digit sum 4 and no other/smaller 5 digit prime has a digit sum 4 or less.

Crossrefs

Cf. A069661, A069662, A113628.

Sequence in context: A089770 A249447 A199302 * A241100 A374350 A337017

Adjacent sequences: A069660 A069661 A069662 * A069664 A069665 A069666

Keyword

nonn,base

Author

Amarnath Murthy, Apr 05 2002

Extensions

More terms from Sascha Kurz, Aug 25 2002

Edited by N. J. A. Sloane, May 05 2007

Status

approved