989

This number is a composite.

+ The smallest Brilliant number that is the sum of first n invertible primes, i.e., (19+61+109+199+601). [Bajpai]

(There are 3 curios for this number that have not yet been approved by an editor.)

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell