Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 280: | \[{22^{280}-1\over21}\] | 52 × 7 × 23 × 29 × 41 × 43 × 71 × 73 × 97 × 113 × 181 × 281 × 401 × 3209 × 4481 × 47041 × 55441 × 83273 × 86969 × 150901 × 224071 × 245411 × 882701 × 3096409 × 16968421 × 34379269 × 57036911 × 305490121 × 66068941261<11> × 108635136821<12> × 240425214401<12> × 816048655801<12> × 25375062902561<14> × 892792661763983821<18> × 10253921496675516661<20> × 472286706064064294087273<24> × 2765572455580426279379621<25> × 3749932998019858488545281<25> × 15044329595355895339405439512325624728630472215019701529001976877841646783752403627580269038567161<98> |