26239...10111 (104-digits)

This number is a prime.

                                       2623 9712051774 3884460035 2267556609
1763802103 7101007564 2957316832 3363181126 2619649151 5234929474 8471910111

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

Call these numbers p = 24698258*239# + 28606476153371 {+ 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36} and you get the first known Googol-prime-11-tuplet. Note that you would need about two years and a three GHz-CPU to beat this record. It was found, coincidentally, by Jens Kruse Andersen while searching for a 104-digit 10-tuplet. [Luhn]