Migration complete - please let us know if anything isn't working.
This number is a prime.
The exponent of the 41st known Mersenne prime, which was discovered by Josh Findley via GIMPS in 2004. Two years later, Luke Pebody demonstrated that this 7235733-digit number cannot be generated by any other integer added to the sum of its digits. (See 2099.)
(There are 3 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell