Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 252: | \[{28^{252}-1\over27}\] | 32 × 5 × 13 × 192 × 29 × 37 × 43 × 113 × 127 × 157 × 271 × 281 × 631 × 757 × 1009 × 2269 × 13007 × 24481 × 29443 × 35771 × 47221 × 50221 × 93913 × 102547 × 132679 × 444979 × 546211 × 749729 × 1905121 × 4422461 × 164630467 × 188878213 × 1100860153 × 1994659633 × 28927311337<11> × 1266889762657<13> × 40860961267393<14> × 14070581691669049<17> × 223934956756993189<18> × 7227134916773607244081<22> × 119112991233132018711961<24> × 154154940307497300453157<24> × 80504606285644335564853693<26> × 127642530877568016164549839369<30> × 1427110355583913741258562836849<31> |