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Search: id:A097223
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| A097223 |
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Prime numbers p such that p = prime(n) and n = product of the digits of p. |
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+0
8
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OFFSET
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1,1
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COMMENT
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This sequence is a subsequence of A097220, so the sequence is also a subsequence of A097221. Next term if it exists is greater than 4333000000.
There is no further term. [From Farideh Firoozbakht (mymontain(AT)yahoo.com), Jul 15 2009]
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EXAMPLE
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2475989 is in the sequence because 2475989 is 2*4*7*5*9*8*9-th prime.
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MATHEMATICA
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v={}; Do[If[h=IntegerDigits[Prime[n]]; l=Length[h]; p=Product[h[[k]], {k, l}]; p==n, v=Append[v, Prime[n]]; Print[v]], {n, 205000000}]
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CROSSREFS
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Cf. A097220, A097221.
Sequence in context: A112013 A165691 A154419 this_sequence A063494 A146594 A124898
Adjacent sequences: A097220 A097221 A097222 this_sequence A097224 A097225 A097226
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KEYWORD
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base,fini,full,nonn,bref
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AUTHOR
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Farideh Firoozbakht (mymontain(AT)yahoo.com), Aug 06 2004
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