Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 183: | \[{19^{183}-1\over18}\] | 3 × 127 × 9883 × 135787 × 68645282057629<14> × 981546130591378639280589136331610161765688719269663<51> × 56065687629692436349945381294682921858769274981456436532996640647681369599401<77> × 29562825688399982540392615523566612231088294661486221946308829807741379256173603<80> |