Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 180: | \[{19^{180}-1\over18}\] | 23 × 32 × 52 × 73 × 11 × 132 × 31 × 37 × 61 × 73 × 109 × 127 × 151 × 181 × 199 × 211 × 271 × 523 × 769 × 911 × 2251 × 6661 × 29989 × 35533 × 66601 × 211573 × 236377 × 584911 × 1081291 × 2460181 × 171434401 × 16936647121<11> × 207691902001<12> × 1687178375041<13> × 8374006851436085760993151<25> × 735546785834162565719034301<27> × 1734892387423223080525442542604717085994846921<46> |