Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 252: | \[{7^{252}-1\over6}\] | 24 × 32 × 52 × 13 × 19 × 29 × 37 × 43 × 113 × 127 × 181 × 911 × 1009 × 1063 × 4733 × 9829 × 51031 × 117307 × 250993 × 309079 × 2304793 × 20801593 × 67979647 × 1506625093 × 11898664849<11> × 13564461457<11> × 13841169553<11> × 31864919689<11> × 195489390796456327201<21> × 2643999917660728787808396988849<31> × 378063753860405247739880147553087649<36> |