Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 437: | \[{7^{437}-1\over6}\] | 47 × 419 × 3083 × 2095853 × 2108089 × 4534166740403<13> × 31479823396757<14> × 9887086977363287<16> × 871625877266359638463636983740325357448571165302789<51> × 1026192474050728251105298856033590099735573857437245161214485672759193140185111828420298307433711728531582594135301115114721787651686804455031910764459811262236033741645467156566744145267507906456567529855393705299744155170361812238520412502400752561343279<256> |