91521...49253 (193-digits)

This number is a prime.

                  915 2125273335 3945495155 5763656975 7781858791 9395991051
1111511711 9121123125 1291331351 4114314514 7153155159 1611651691 7117517718
3185187189 1952012032 0520720921 3215217219 2212252312 3523724324 5247249253

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

The smallest prime greater than a googol formed by ascending concatenation of first n odd composite numbers (n=72). [Loungrides]