10000...38979 (100-digits)

This number is a prime.

                                            1000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0007538979

Just showing those entries submitted by 'Kulsha': (Click here to show all)

10⁹⁹ + 7538979 is the smallest one hundred-digit prime with the first digit being equal to preceding gap and the last digit being equal to following gap. [Kulsha]