Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 308: | \[{22^{308}-1\over21}\] | 5 × 7 × 23 × 29 × 43 × 67 × 89 × 97 × 353 × 617 × 4481 × 83273 × 86969 × 840841 × 16968421 × 34379269 × 37340689 × 61303243 × 1176469537 × 285451051007<12> × 6294765596659<13> × 9617835527609<13> × 73194743542229<14> × 14780711037222901<17> × 24482835215255654759774869<26> × 4341375238415287335332521765256295353<37> × 868349285220418699859316590919190638269067911418676413837787<60> × 4057442214409803276902165577105140019704105577336773173171366859221<67> × 366999949382902879849879334146602012352204508142573944185390866040394608297629079<81> |