Migration complete - please let us know if anything isn't working.
This number is a composite.
115 (or 5! - 5) is the smallest composite number of the form p! - p, where p is prime. [Bakker]
115 = 23 x (2 + 3). [Sladcik]
The smallest integer n, in which pi(n) occurs at the nth decimal place of π. [Wu]
The smallest three-digit integer, abc, such that (abc)/(a*b*c) is also prime. [Patterson]
An emirpimes, ending with the smallest emirpimes. It implies that two emirpimes can be found in its reversal. [Capelle]
π(115) = (1*1*5)^1 + (1*1*5)^2. [Bervaye]
(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