

A108330


Integers n such that 10^n29 is a prime number.


16



2, 3, 5, 7, 8, 13, 14, 761, 794, 2216, 3710, 3860, 3937, 5091, 7754, 29091
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OFFSET

1,1


COMMENTS

The next term, if one exists, is >100000. [From Robert Price, Apr 25 2011]
See Kamada link  primecount.txt for terms, primesize.txt for discovery details including probable or proved primes  search on "99971".


LINKS

Table of n, a(n) for n=1..16.
Makoto Kamada, List of nearrepdigitrelated prime numbers.
Index entries for primes involving repunits.


EXAMPLE

n = 8 is a member because: 10^829 = 10000000029 = 99999971, which is prime.


CROSSREFS

Cf. A089675, A095714, A092767.
Sequence in context: A028756 A028799 A080435 * A262587 A039892 A278645
Adjacent sequences: A108327 A108328 A108329 * A108331 A108332 A108333


KEYWORD

more,nonn


AUTHOR

Julien Peter Benney (jpbenney(AT)ftml.net), Jun 30 2005


EXTENSIONS

5091 and 7754 from Sean A. Irvine, Mar 04 2010
a(16) = 29091 from Robert Price, Dec 15 2010
Edited by Ray Chandler, Dec 23 2010


STATUS

approved



