Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 403: | \[{10^{403}-1\over9}\] | 53 × 79 × 1613 × 2791 × 195053 × 6943319 × 265371653 × 2877743575868875117<19> × 57336415063790604359<20> × 280209982976719719466419494184741321813377865130064675530176363637<66> × 3547478817344912902950457585116719973211705576254835567835000256552838260445144780325404037236002319214230733485380897373306607802465924320278735047583105900764174119463979276478672055367428974201380534351889307876729179979619627000454206441026105822346360820136234511<268> |