Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
142: | \[{10^{142}-1\over9}\] | 11 × 290249 × 241573142393627673576957439049<30> × 45994811347886846310221728895223034301839<41> × 31321069464181068355415209323405389541706979493156189716729115659<65> |