Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 386: | \[{5^{386}-1\over4}\] | 2 × 3 × 69481 × 1046447 × 749154725101<12> × 406875383561091922623241829<27> × 13302022772145301912117245535348604521034254056544901<53> × 137264616753458559985037764860037509634175051850677845943197547205305803<72> × 653307895929756357032069541177270095642284909406860982228674482418078001190973372748580182250689<96> |