Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 256: | \[{19^{256}-1\over18}\] | 29 × 5 × 17 × 97 × 181 × 257 × 3833 × 15073 × 36097 × 87553 × 151681 × 563377 × 136816129 × 33225725139813889<17> × 1486811410142377153<19> × 754656840241231034881<21> × 12318752177608821548801<23> × 315989504252280687606137174469121<33> × 274254682725217636458847635846091201<36> × 3465657707570606956932512392503718320001<40> × 2205818653908661229962960742706809709910922744924585347516359369103193724891425343742117116673<94> |