Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
109: | \[{10^{109}-1\over9}\] | 1192679 × 712767480971213008079<21> × 5295275348767234696493<22> × 246829743984355435962408390910378218537282105150086881669547<60> |