Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
215: | \[{10^{215}-1\over9}\] | 41 × 173 × 271 × 431 × 1527791 × 1963506722254397<16> × 2140992015395526641<19> × 41398275939670867448911914339156680381343777006826487831<56> × 50441422688391875381007541515590983873234580366435672396194147589090888973689536137051068925751997547638790031<110> |