This number is a prime.

+ The first term of six prime numbers in arithmetic progression with a common difference of 9876543210. [Honaker]

+ The smallest conductor of a rank 3 elliptic curve.

+ 5077 is an unhappy prime, but 5077*2^2198565-1 is a happy prime containing 661838 digits. Found by J. K. Andersen, 2008. [Rivera]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell