[seqfan] Fwd: A nice (decimal) property of 78

Olivier Gerard olivier.gerard at gmail.com
Mon Oct 27 10:01:06 CET 2008

Message from Farideh Firoozbakht <mymontain at yahoo.com>

Please put Farideh in copy of your answers today.


---------- Forwarded message ----------

Dear seqfans,

phi(78)=phi(7)*phi(8), does there exist another such number?


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