Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 491: | \[{6^{491}-1\over5}\] | 983 × 447793 × 5514913 × 292396393 × 2780594730445703<16> × 11677264980525481<17> × 20081279129737577144847073<26> × [5103665891041116350609174673007052440395161142739518454526624016693517934331076252917291733701291649152336278209460667437149408401358185406815557122497106007462697697462258059099119834692912320865604672919919821085080921163167058352713917322739743885930540966976182052182330862568345422900760798520339<301>] |