Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 260: | \[{25^{260}-1\over24}\] | 22 × 11 × 132 × 41 × 53 × 71 × 131 × 241 × 313 × 521 × 2081 × 5227 × 9161 × 18461 × 38923 × 51169 × 87881 × 14402441 × 305175781 × 632133361 × 537181587281<12> × 15188886343541<14> × 83181652304609<14> × 1034150930241911<16> × 15199221608544481<17> × 20986207825565581<17> × 129044008326199409<18> × 10371047328004711415976187888122003157511900197790591281<56> × 76676639028844184006008718377454967406853361576121278457944709519246349343012579984382593428234928972925256755874760273452678132321<131> |