Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 206: | \[{12^{206}-1\over11}\] | 13 × 1237 × 3709 × 7417 × 289765369 × 1309643353 × 1003041977479<13> × 13561251678157<14> × 987452638049443<15> × 237720321284227801429<21> × 13951770188639477959439<23> × 226319692803146344014357964333823<33> × 96184998684838077544113595020417341221<38> × 1143630800580569683259972155090034378209<40> |