Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
127: | \[{11^{127}-1\over10}\] | 2985212831443<13> × 6073732108394141<16> × 108345618426999904901<21> × 91966303295251191104971960132273397364144023351465750399992554753980589155137853599<83> |