Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 396: | \[{5^{396}-1\over4}\] | 22 × 33 × 7 × 13 × 19 × 23 × 31 × 37 × 67 × 89 × 199 × 397 × 601 × 829 × 1453 × 5167 × 5281 × 143551 × 595123 × 1731511 × 6597973 × 12207031 × 190771747 × 386478495679<12> × 766142400277<12> × 1030330938209<13> × 22542470482159<14> × 153560376376050799<18> × 750213207760936191769333<24> × 6509387183417404924784917<25> × 874300184250616439267985523227691404297001<42> × 3297187189058986706552403293506970234679435613<46> |