Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 412: | \[{7^{412}-1\over6}\] | 24 × 52 × 1031 × 3709 × 17923 × 51913 × 115361 × 38774969 × 122087137 × 490201721 × 1058638292629<13> × 461785968654529<15> × 28702255943293301<17> × 24643851880680753997<20> × 41875773535891952971477<23> × 13403661862710589958293849<26> × 85260663016194334109048149<26> × 3881857325980634518941637292219503134129837767067847927536230670133891762702635041<82> × 10316589882658148664018432412741304154103858145253645339510927287724805842171756259<83> |