Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 248: | \[{12^{248}-1\over11}\] | 5 × 13 × 29 × 89 × 233 × 373 × 1489 × 2729 × 617521 × 1263499 × 126883621 × 23364027983<11> × 234187563803<12> × 26825115448057<14> × 29347118548682214281<20> × 87873272984241400393<20> × 15838950898364499433201<23> × 38443163532797107825239361<26> × 173420475484059478781201647<27> × 1680886812565780544500189269513543478301671804478170928525289623210675307895442641<82> |