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A158087 Prime numbers p such that largest digit of p / smallest digit of p = prime. 0
13, 17, 31, 71, 113, 127, 131, 137, 151, 157, 167, 173, 211, 251, 263, 271, 311, 313, 317, 331, 349, 359, 379, 389, 397, 439, 463, 487, 521, 541, 563, 571, 593, 617, 643, 653, 739, 751, 761, 839, 937, 953, 983, 1117, 1123, 1151, 1153, 1171, 1213, 1217 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Asymptotic density 0.

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

Sequence in context: A176882 A272403 A159614 * A210546 A126808 A053009

Adjacent sequences:  A158084 A158085 A158086 * A158088 A158089 A158090

KEYWORD

nonn,base,less

AUTHOR

Juri-Stepan Gerasimov, Mar 12 2009

EXTENSIONS

643 and 1117 inserted by R. J. Mathar, Mar 17 2009

STATUS

approved

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Last modified November 15 13:47 EST 2019. Contains 329149 sequences. (Running on oeis4.)