99999...43331 (44-digits)

This number is a prime.

                            9999 9999988888 8887777777 6666665555 5440443331

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

The largest prime containing nine 9s, eight 8s, seven 7s, six 6s, five 5s four 4s, three 3s, one 1, and one 0. [Loungrides]