2196
This number is a composite.
Just showing those entries submitted by 'Morain': (Click here to show all)
(27331 - 1)/458072843161 is prime. This number has 2196 decimal
digits and set a new record in 1997 for general purpose primality
proving. It required 1 month of CPU on an Alpha 400 MHz. [Mayer and
Morain]
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