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A101249 Primes that are a concatenation of 5, 7 and a prime. +0
6
577, 5711, 5717, 5737, 5741, 5743, 5779, 5783, 57107, 57131, 57139, 57149, 57163, 57173, 57179, 57191, 57193, 57223, 57241, 57251, 57269, 57271, 57283, 57331, 57347, 57349, 57367, 57373, 57383, 57389, 57397, 57457, 57467, 57487, 57503 (list; graph; listen)
OFFSET

1,1

LINKS

Peter Alfeld The 10,000 smallest prime numbers.

EXAMPLE

5711 is a prime concatenated from the primes 5,7 and 11.

MATHEMATICA

Select[ Table[ FromDigits[ Flatten[ IntegerDigits /@ {5, 7, Prime[n]}]], {n, 100}], PrimeQ[ # ] &] (from Robert G. Wilson v Dec 20 2004)

CROSSREFS

Cf. A100607, A101218, A101219, A101250, A101251, A101252.

Adjacent sequences: A101246 A101247 A101248 this_sequence A101250 A101251 A101252

Sequence in context: A013911 A104937 A031726 this_sequence A031612 A069365 A097770

KEYWORD

nonn,base,easy

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Dec 16 2004

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net) and Robert G. Wilson v, Dec 22, 2004

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.


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