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A271799 Prime numbers whose reversal is a product of 3 distinct primes. 2
223, 269, 281, 457, 499, 839, 1049, 1289, 1373, 1459, 1543, 1609, 2003, 2011, 2017, 2027, 2029, 2053, 2081, 2087, 2213, 2221, 2237, 2239, 2243, 2267, 2269, 2293, 2297, 2441, 2459, 2609, 2657, 2659, 2693, 2699, 2803, 2833, 2851, 2857, 2879, 2887, 2897, 3449, 3557 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[4000], PrimeQ[#] && Transpose[FactorInteger[IntegerReverse[#]]][[2]] == {1, 1, 1} &] (* Tanya Khovanova, Mar 16 2021 *)

CROSSREFS

Cf. A270175, A007304.

Sequence in context: A345785 A098591 A138665 * A152824 A142386 A102950

Adjacent sequences:  A271796 A271797 A271798 * A271800 A271801 A271802

KEYWORD

nonn,base

AUTHOR

Chai Wah Wu, Apr 14 2016

STATUS

approved

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Last modified November 27 01:16 EST 2021. Contains 349344 sequences. (Running on oeis4.)