Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 221: | \[{30^{221}-1\over29}\] | 103 × 409 × 443 × 911 × 13339 × 178907 × 252877 × 10570676926829627653<20> × 2752131582567217857241<22> × 388627706717249274729481<24> × [82594469698645705626028502583913741338621665679745342533182633795170634422574926335113593677540203174946567647931722994920146459131248762192285706458343480617607418668891162150158459055605060950364581363941490267473423009482809946957657<236>] |