72288...11177 (97-digits)

This number is a prime.

7228828 1767867925 5278166892
6755667258 6357433618 2571137379 1931117197 9991339177 3713739999 3737111177

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

Submitted: 2019-05-10 12:22:26; Last Modified: 2019-05-10 13:54:17.