Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 551: | \[{13^{551}-1\over12}\] | 1973 × 2843 × 3539 × 12865927 × 9468940004449<13> × 194200017685943<15> × 43372339752616291<17> × 846041103974872866961<21> × [293241437738089416223931905723645446457838796285769695888602991730083830948601925325277867510386402114369154055500470290131863447438646402182308881324661292670587562595950948865704936856242429074588365464260005348337691825172892980988880344377061267654380558657944411414761960616639663287873543793919825623482427242045186078861532891796821143951665998067058281623802706293276908658288615969007613662208401335271586576294119140821827454365110894390455867370054298384071553849579634398038983854756715272046875652938198920955745419837<531>] |