688889
This number is a prime.
The smallest strobogrammatic prime of the form
68k9. [Patterson]
The smallest prime number containing 10 circular loops. Curiously, the smallest prime containing 9 loops, i.e., 828889, is larger. [Gaydos]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell