Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 83: | \[{4^{83}-1\over3}\] | 167 × 499 × 1163 × 2657 × 155377 × 13455809771<11> × 57912614113275649087721<23> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 83: | \[{4^{83}-1\over3}\] | 167 × 499 × 1163 × 2657 × 155377 × 13455809771<11> × 57912614113275649087721<23> |