Ferrier's Prime

Author

Eric W. Weisstein
August 24, 2004

This notebook downloaded from http://mathworld.wolfram.com/notebooks/PrimeNumbers/FerriersPrime.nb.

For more information, see Eric's MathWorld entry http://mathworld.wolfram.com/FerriersPrime.html.

©2005 Wolfram Research, Inc. except for portions noted otherwise

Number

Ferrier=(2^148+1)/17

Length[IntegerDigits[Ferrier]]

PrimeQ[Ferrier]//Timing

<<NumberTheory`PrimeQ`

ProvablePrimeQ[Ferrier,Certificate->True]//Timing