Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 442: | \[{28^{442}-1\over27}\] | 29 × 53 × 239 × 443 × 547 × 613 × 1327 × 2237 × 2347 × 8807 × 12377 × 58787 × 114661 × 1598039 × 45508138747<11> × 4543753614603737<16> × 148020807352107352204781<24> × [2143019077421830465055328752782717638108556853585647958087689255335141535518212481893963512612046285819435248575236986288206690678066507298322027256097502108260622205954193606064837104252640366978613554510471065600705825416929830222974226151425854313340111150867471683<268>] × [5570989752239081144981192365429855501777259365566286512625539605344922864921925773523229760036575709330027524919573831333612778985874062838928899819184639267942428200193615883567523897090996299797329681209686980777410009224689477232826262531342157133062751166805320745450093<274>] |