Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 598: | \[{28^{598}-1\over27}\] | 29 × 47 × 53 × 547 × 599 × 2237 × 49037 × 114661 × 1598039 × 115152031 × 140668620541<12> × 323122349447<12> × 4099849287367<13> × 4543753614603737<16> × 5607605419158384643<19> × [3580669086279114337331132607544783095772452892240998406838900218254751087479411198360398678711580603594701903323754472994933014004341582133656556502059581204443793500370410984815959002163836548979693693658604688103954447777732748855876041920791015246191912819999331449174257048294657872817040236465644593004170784162796024655666067676949009588142007966259730064551325448139448841613579082405646591845960292596357371802664704150147184070419445536579282690846121869091725196421793582913709902180433546177916164483097960941422708329558227237889246428948240402457425109507878328285194701409912352876533341276860523888249989365165336807904431506035483063576834024595536440574580676983502509232183415152512107186603130254697623446410187438326599145022015600180213<757>] |