Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 264: | \[{31^{264}-1\over30}\] | 27 × 3 × 72 × 13 × 19 × 23 × 37 × 67 × 89 × 331 × 397 × 409 × 617 × 1129 × 2729 × 297991 × 757241 × 922561 × 150332843 × 183516169 × 1048563011 × 599382278617<12> × 852890113921<12> × 169301958609793153<18> × 34731987261785578083133<23> × 414407390867564627396249<24> × 6542062289677294884725761<25> × 245911396799577828131028569<27> × 650141690025315305584300036801<30> × 4451983606421686827580205284201<31> × 12236290645201501169749559350025041<35> × 169647306054596506991813014975032001706913201207290453786264775353051333482608610124089<87> |