22972...64573 (37-digits)

This number is a prime.

                                    2297271 6347428104 4315415333 8805764573

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

The largest non-titanic prime that is the product of a repunit number and all its truncations minus eight, i.e., 111111111*11111111…*111*11*1 – 8 [Gupta]