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A158999
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Palprimes of the form m*reversal(m)+1, sorted on m.
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2
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OFFSET
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1,1
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COMMENTS
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There is no further term up to 5*10^17. 1008001 is the only known palprime which has two representations of the form m*reversal(m)+1 (m > reversal(m)).
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LINKS
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MATHEMATICA
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r[n_]:=FromDigits[Reverse[IntegerDigits[n]]]; Do[If[m>=r[m]&&PrimeQ[m r[m]+1] && r[m r[m]+1]==m r[m]+1, Print[m r[m]+1]], {m, 710000000}]
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CROSSREFS
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KEYWORD
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base,more,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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