Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 196: | \[{7^{196}-1\over6}\] | 24 × 52 × 29 × 113 × 197 × 883 × 911 × 3529 × 3823 × 4733 × 16073 × 161309 × 1074473 × 1445599 × 13473433 × 19847549 × 101361401 × 13564461457<11> × 1933665951863017<16> × 6106505825833677713<19> × 10148051647066664017<20> × 308584634651706890352352946242481<33> |