156
This number is a composite.
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156 = (π(1) + π(5) + π(6)) * (prime(1)+prime(5)+prime(6)).
Note that 156 is the smallest and only even number
with this property. [Firoozbakht]
Submitted: 2004-08-16 12:02:44; Last Modified: 2008-01-30 17:28:00.
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