Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
127: | \[{22^{127}-1\over21}\] | 844737621617899<15> × 28981652059852243<17> × 597882986111295874526931346076383938367546465821972896124248264038234611459119308766140487614303567733639757729535687395065114624601205171<138> |