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A089764 Primes of the form k! followed by a 1. 1

%I

%S 11,61,241,1201,258520167388849766400001,

%T 2631308369336935301672180121600000001,

%U 203978820811974433586402817399028973568000000001,5075802138772247988008568121766252272260045289880360030994059394809856000000000000001

%N Primes of the form k! followed by a 1.

%C The next term has 739 digits. - _Harvey P. Dale_, Jun 08 2014

%e 1201 is a prime obtained as 5! followed by a 1.

%t Select[Table[FromDigits[Join[IntegerDigits[n!],{1}]],{n,50}],PrimeQ] (* _Harvey P. Dale_, Jun 08 2014 *)

%Y Cf. A089765.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Nov 23 2003

%E More terms from _Lior Manor_ May 10 2004

%E One additional term from _Harvey P. Dale_, Jun 08 2014

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Last modified October 15 12:31 EDT 2019. Contains 328026 sequences. (Running on oeis4.)