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A158281
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Prime numbers p such that prime = abs(smallest digit of p - sum of all the other digits of p).
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1
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2, 3, 5, 7, 13, 29, 31, 41, 47, 53, 61, 79, 83, 97, 101, 113, 131, 139, 151, 157, 193, 199, 211, 223, 227, 241, 263, 269, 311, 313, 331, 337, 353, 359, 373, 379, 397, 401, 409, 421, 443, 463, 487, 557, 571, 593, 599, 601, 607, 643, 661, 683, 733, 739, 751, 773
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OFFSET
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1,1
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LINKS
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EXAMPLE
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13(2=abs(1-3)), 29(7=abs(2-9)), 31(2=3-1)
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MATHEMATICA
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sdsodQ[n_]:=Module[{sidn=Sort[IntegerDigits[n]]}, PrimeQ[Abs[sidn[[1]]-Total[Rest[sidn]]]]]; Select[Prime[Range[150]], sdsodQ] (* Harvey P. Dale, Feb 01 2015 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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Single-digit primes added, duplicates of 421 and 443 removed - R. J. Mathar, May 19 2010
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STATUS
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approved
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