72288...11177 (97-digits)

This number is a prime.

                                               7228828 1767867925 5278166892
6755667258 6357433618 2571137379 1931117197 9991339177 3713739999 3737111177

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

The largest bi-truncatable prime. Simultaneous and independently obtained by G. Resta, D. Kamenetsky, S. Cavegn and P. Cleary. [Rivera]