99999...00001 (84-digits)

This number is a prime.

                                                             9999 9999999999
0000000000 0000999999 9999999900 0000000000 0099999999 9999990000 0000000001

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

The largest prime factor of a googol plus 100. [Patterson]