Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{9^{67}-1\over8}\] | 221101 × 5390821 × 441019876741<12> × 475384700124973<15> × 4299412981246169975118907<25> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{9^{67}-1\over8}\] | 221101 × 5390821 × 441019876741<12> × 475384700124973<15> × 4299412981246169975118907<25> |