Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
181: | \[{10^{181}-1\over9}\] | 12671 × 28865519 × 995130761 × 16814655289<11> × 414479952329<12> × 438021653462960104992408987937518226776204485035693500552436618000325770192107907236498209863537528380608485764810227154150678965468226079<138> |