32831
This number is a prime.
The only prime starting and ending with Mersenne primes (3,
31) that sandwich their difference (28) which is a perfect
number. [Beedassy]
(There is one curio for this number that has not yet been approved by an editor.)
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell