Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 415: | \[{7^{415}-1\over6}\] | 167 × 2801 × 11621 × 66733 × 58704241 × 76066181 × 3332338781 × 7685542369<10> × 62911130477521<14> × 303567967057423<15> × 18624275418445601<17> × 239838191551978888291<21> × 472147873240510126308071<24> × 51829577836820755433538665461713492999496108342750675550090364414493829487555405194500231938804689916488214691838547205024454563650750478462698803544785689682882654962718711620595880287299695624127593375810000701<212> |