Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 330: | \[{31^{330}-1\over30}\] | 25 × 3 × 5 × 72 × 112 × 19 × 23 × 41 × 67 × 331 × 397 × 617 × 661 × 1321 × 2521 × 2531 × 11551 × 17351 × 21821 × 297991 × 757241 × 2995081 × 150332843 × 167767051 × 327412201 × 1048563011 × 880374069121<12> × 3173617894921<13> × 13027986803063207491231<23> × 34731987261785578083133<23> × 650141690025315305584300036801<30> × 24106981477091678423113880081946849059226586740161<50> × 236661696642275153056980146191674776616380367693641<51> × 1593387100161979509303466963104076851326577994609385875919607905328458786388271<79> × 159315684844401735840593210406268936914695027737050410326853325901125096672398311850809028114964615951125738957216281<117> |