Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 707: | \[{4^{707}-1\over3}\] | 43 × 127 × 1463491 × 126729751 × 16729032587<11> × 128782811543<12> × 7432339208719<13> × 341117531003194129<18> × 700553271665826444242790841<27> × 845100400152152934331135470251<30> × 3598194408030741269333601460682311<34> × 51903872795463977962670556595700473584389435543<47> × 979290663259342511569398738931332381010645147626228199<54> × 252259792202567394944822868291124236993914364064096232588320394782508006030187465562496778644970103203889333597813657616865265188603567269160341216279419491369912803<165> |