Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 325: | \[{28^{325}-1\over27}\] | 53 × 131 × 15101 × 106801 × 637421 × 72416371 × 6813064001<10> × 7984305701<10> × 4543753614603737<16> × 90216355836698261<17> × 3276407634171096216610291054196844397042681<43> × [207934952203162080502950415242519578417077770476921893186780825205687206511738442750311348610375443104399222268689145871311906863344526599702770259346041686611039180844993779952256868298471795104178102179311538444726123862910878807874571219798453204953760067258318258357250946129409927672464481382181922809439785913122624699669161736320690633139201<348>] |