Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 165: | \[{31^{165}-1\over30}\] | 3 × 5 × 112 × 23 × 331 × 397 × 617 × 1321 × 2521 × 17351 × 150332843 × 167767051 × 327412201 × 650141690025315305584300036801<30> × 236661696642275153056980146191674776616380367693641<51> × 159315684844401735840593210406268936914695027737050410326853325901125096672398311850809028114964615951125738957216281<117> |