Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 228: | \[{20^{228}-1\over19}\] | 32 × 7 × 13 × 19 × 127 × 229 × 401 × 421 × 6841 × 12277 × 362478049 × 2622927733 × 75368484119<11> × 109850818001<12> × 192696104561<12> × 222155207347<12> × 1374892397251<13> × 2272727294381<13> × 68465688966343<14> × 693371183978144761<18> × 72098698642633148592794795053<29> × 207373637974370334920244263016739<33> × 4734172325105376746958728328769869862970783391081337286165535303663510880257642495974336000401<94> |