Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 631: | \[{3^{631}-1\over2}\] | 6311 × 7573 × 22717 × 362915751904864153<18> × 14687869282713681178439568954014688395161026671074912540023016768739427601972538607016171641949171779248819749805840422347766599470550763967381369827101110081357791810325561538117285834949883420957464278805393083461485720574249707027142904596605377963640267325116976330891<272> |