login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A109178 Largest eight-digit primes (in decreasing order) which use each of 0-to-7 decimal digits exactly once. 5
76540231, 76532041, 76524031, 76523401, 76520341, 76514203, 76512043, 76504321, 76504231, 76503241, 76502143, 76501423, 76453021, 76451203, 76435201, 76425103, 76421053, 76401253, 76345201, 76340521, 76325401 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

There are exactly 2668 eight-digit primes using digits 0-to-7 exactly once, here the largest ones are given; cf. A109177 with the smallest ones.

LINKS

Table of n, a(n) for n=1..21.

MATHEMATICA

Sort[Take[FromDigits/@Select[Permutations[Range[0, 7]], First[#]!=0 && PrimeQ[ FromDigits[#]]&], -50], #1>#2&] (* Harvey P. Dale, Aug 16 2011 *)

CROSSREFS

Cf. A109177.

Sequence in context: A210319 A295479 A203825 * A178556 A251174 A053431

Adjacent sequences:  A109175 A109176 A109177 * A109179 A109180 A109181

KEYWORD

base,nonn

AUTHOR

Zak Seidov, Jun 21 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 17 14:50 EST 2018. Contains 318201 sequences. (Running on oeis4.)