1959
This number is a composite.
Single Curio View: (Seek other curios for this number)
The smallest known emirpimes greater than a googol are 10100 + 1959 and its reverse, which are both semiprime. Found by Ed Pegg, Jr. in reply to a query from Jonathan vos Post.
Submitted: 2004-10-31 04:03:28; Last Modified: 2021-05-12 20:43:50.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell