Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 247: | \[{29^{247}-1\over28}\] | 521 × 148123 × 1386659 × 4748492087<10> × 21582487435081<14> × 157193380600163813309<21> × 24614398537697275106206447<26> × [13722614234973082570256219500920357591654360491042823210473893934969231378654345610778645325383728752160674928165682890364302353444803627761450717232443518051459403668298583060964885005548308484337225449708155523088137899465072131499522924120827557690286996946006726614318547623<278>] |