Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
111: | \[{31^{111}-1\over30}\] | 3 × 149 × 223 × 331 × 4219 × 15541 × 152597832677<12> × 257803457371<12> × 386626708057<12> × 52812493022953<14> × 66685632043094378655582637553641418149167535516828458801415092872326088347774211129187093655702612867<101> |