16091
This number is a prime.
Just showing those entries submitted by 'Bajpai': (Click here to show all)
The smallest strobogrammatic prime that can be expressed as the sum of six consecutive squarefree semiprimes (2654 + 2661 + 2669 + 2681 + 2705 + 2721 = 16091). [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell