10000...00001 (214-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

                                                                        1000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0177600000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000001

A patriotic prime in the U.S. [Gaydos]