Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 400: | \[{10^{400}-1\over9}\] | 11 × 17 × 41 × 73 × 101 × 137 × 251 × 271 × 401 × 1201 × 1601 × 3541 × 5051 × 9091 × 21401 × 25601 × 27961 × 60101 × 1676321 × 5070721 × 5882353 × 7019801 × 5964848081<10> × 24592788001<11> × 182521213001<12> × 14103673319201<14> × 78875943472201<14> × 1680588011350901<16> × 19721061166646717498359681<26> × 3475700719926956233659563848134955052440801<43> × 129694419029057750551385771184564274499075700947656757821537291527196801<72> × 116990301476747139063183899107829995503054414640437569739696739532637081068627241615756780789663364521811201<108> |