Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
262: | \[{7^{262}-1\over6}\] | 23 × 263 × 86461 × 1686923681 × 1662960054431535335297500402289819722374556043280296929670416776752774953044651490048577245921<94> × 85053461164796801949539541639542805770666392330682673302530819774105141531698707146930307290253537320447270457<110> |