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A087764
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Primes whose reversal is a multiple of 13.
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10
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19, 31, 269, 281, 397, 401, 457, 463, 523, 773, 827, 1063, 1117, 1123, 1367, 1373, 1427, 1433, 1489, 1549, 1609, 1621, 1871, 1931, 1987, 1993, 2027, 2089, 2161, 2221, 2399, 2459, 2531, 2593, 2647, 2707, 2713
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OFFSET
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1,1
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COMMENTS
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There are no primes (besides 11) whose reversal is a multiple of 11.
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LINKS
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MAPLE
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digrev:= proc(n) local L, i;
L:= convert(n, base, 10);
add(L[-i]*10^(i-1), i=1..nops(L))
end proc:
B:= map(digrev, {seq(i, i=13..10000, 13)}):
sort(convert(select(isprime, B), list)); # Robert Israel, Oct 23 2019
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PROG
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(PARI) forprime(n=2, 3000, if(fromdigits(Vecrev(digits(n)))%13==0, print1(n, ", "))) \\ Mohammed Yaseen, Jul 19 2022
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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STATUS
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approved
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