Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
78: | \[{9^{78}-1\over8}\] | 2 × 5 × 7 × 132 × 53 × 73 × 79 × 157 × 313 × 2887 × 6553 × 7333 × 10141 × 325729 × 398581 × 797161 × 4795973261<10> × 271722723752757889<18> |