Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 143: | \[{10^{143}-1\over9}\] | 53 × 79 × 21649 × 513239 × 2823679 × 180523201 × 265371653 × 47428676444591705727929369346443<32> × 37226581283489953701472184267606576037130878873797366013283473311751294203<74> |