Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 421: | \[{6^{421}-1\over5}\] | 11789 × 30313 × 23864807 × 133942354061<12> × 38368561573169547893<20> × [18236821533549982520269318841819793324631441145248128677445108602562514049931345574696554216085513941894295453027858115779906877826036137046359445069726542129377110422485757468519558005652184113319502207839831306806783433308798398056117550778650777237662049146796722728694948947473<281>] |