Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 117: | \[{19^{117}-1\over18}\] | 32 × 79 × 127 × 157 × 523 × 599 × 29251 × 29989 × 6083299 × 133338869 × 585710659 × 887960971 × 90742373983<11> × 529668106111<12> × 421451911540236097<18> × 686372217676444216671585638053080198676826927985226057<54> |