Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 53: | \[{19^{53}-1\over18}\] | 107 × 323930821687153<15> × 2551089855701675251204783<25> × 37334173314913678536474517<26> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 53: | \[{19^{53}-1\over18}\] | 107 × 323930821687153<15> × 2551089855701675251204783<25> × 37334173314913678536474517<26> |