Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
219: | \[{10^{219}-1\over9}\] | 3 × 37 × 439 × 2212293763 × 12171337159<11> × 1855193842151350117<19> × 49207341634646326934001739482502131487446637<44> × 39316310783659104892252157287077969239619734325044334592964583271<65> × 23593748551050409936688015200253053030029532433958916533719315706853<68> |