Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 35: | \[{20^{35}-1\over19}\] | 11 × 29 × 61 × 71 × 251 × 491 × 701 × 911 × 23311 × 32719 × 164011 × 13295107990361<14> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 35: | \[{20^{35}-1\over19}\] | 11 × 29 × 61 × 71 × 251 × 491 × 701 × 911 × 23311 × 32719 × 164011 × 13295107990361<14> |