Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 354: | \[{5^{354}-1\over4}\] | 2 × 32 × 7 × 31 × 709 × 827 × 1063 × 198241 × 347629 × 5242462229<10> × 49987218529<11> × 3237765225301<13> × 2059647179472887<16> × 21180247636732981<17> × 130325543183670643<18> × 504583856881942565107<21> × 1663887084465861537223<22> × 2047572230657338751575051<25> × 340863370420651571324835367261<30> × 14365640833437852408745701299256005364862514221<47> |