10089...00001 (316-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

                                     100890 8119910000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000001000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000001

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The largest known bemirp, as of 27 June 2020. Certified prime by Primo. It breaks the previous record set by David Broadhurst in 2006 by an invertible number of digits. [Sariyar]