Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 621: | \[{7^{621}-1\over6}\] | 33 × 19 × 37 × 47 × 109 × 139 × 811 × 1063 × 2377 × 3083 × 2583253 × 402011881627<12> × 31479823396757<14> × 77569456660417<14> × 235169662395069356312233<24> × 227556220136287506028942276770826968937<39> × 201787294743721846314281442542420466149577013330276774094281<60> × [45585196885188162927807350071517033483407409584787675099838505155895254438335223286531925039318005207326854178445089116298477574832517677745197356957817586398688287543356656656131308159002837513411288869787646616557837504376783221718248330657505175828404401730441633034283600157123799243423896917850172990082734992032638752062639976849<335>] |