Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
70: | \[{19^{70}-1\over18}\] | 22 × 52 × 11 × 71 × 151 × 197 × 701 × 911 × 2251 × 70841 × 226871 × 65365284260571112024359304391<29> × 5156590470591163710974829741361<31> |