Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 187: | \[{9^{187}-1\over8}\] | 23 × 67 × 103 × 307 × 661 × 1021 × 1871 × 3851 × 6359 × 34511 × 1272753542934479<16> × 3411926755457243<16> × 18177792435744585993179560027<29> × 527447346649058852221083363397206345775307<42> × 1602492098135068548896997626193620844099621992083<49> |