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A107109
n-th largest n-digit prime.
2
7, 89, 983, 9941, 99929, 999931, 9999929, 99999827, 999999739, 9999999769, 99999999763, 999999999697, 9999999999443, 99999999999503, 999999999999353, 9999999999999431, 99999999999999251, 999999999999999463, 9999999999999999343, 99999999999999999199
OFFSET
1,1
COMMENTS
Cf. A069100: n-th smallest n-digit prime.
LINKS
Eduard Roure Perdices, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = prime[pi[10^n]-n+1]
MATHEMATICA
Table[Prime[PrimePi[10^n]-n+1], {n, 13}]
a[n_] := NextPrime[10^n, -n]; (* Eduard Roure Perdices, May 09 2021 *)
CROSSREFS
Cf. A069100.
Sequence in context: A053302 A068877 A121044 * A089771 A249448 A069661
KEYWORD
nonn,base
AUTHOR
Zak Seidov, May 12 2005
EXTENSIONS
Extended by Eduard Roure Perdices, May 09 2021
STATUS
approved