Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 407: | \[{6^{407}-1\over5}\] | 23 × 149 × 7919 × 12211 × 217339 × 253969 × 2569799 × 3154757 × 334286825813<12> × 34595668539628973486056699133<29> × 698475907912176665118286088415628848552123130910862219690965249686615060315534843429645926024854583566254991<108> × 8514857053555016689627950398659870505885586171510968975863070637307176960940925143344540886784513818234443791006270849025441285433387<133> |