|
| |
|
|
A097223
|
|
Prime numbers p such that p = prime(n) and n = product of the digits of p.
|
|
7
| | |
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| 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]
|
|
|
EXAMPLE
| 2475989 is in the sequence because 2475989 is 2*4*7*5*9*8*9-th prime.
|
|
|
MATHEMATICA
| 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}]
|
|
|
CROSSREFS
| Cf. A097220, A097221.
Sequence in context: A112013 A165691 A154419 * A063494 A146594 A202138
Adjacent sequences: A097220 A097221 A097222 * A097224 A097225 A097226
|
|
|
KEYWORD
| base,fini,full,nonn,bref
|
|
|
AUTHOR
| Farideh Firoozbakht (mymontain(AT)yahoo.com), Aug 06 2004
|
| |
|
|