Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 388: | \[{18^{388}-1\over17}\] | 52 × 13 × 19 × 389 × 3881 × 11059 × 1254793 × 62531633 × 3852395353 × 285724807097<12> × 11299071543690131<17> × 11986688438966689033246328331593<32> × 130958018700810567361260919261914712849<39> × 42483571366125079581250704287511077869290098582519955732360841<62> × 6682028674792021850499658634432979974620281094975260236296555044282940787318279<79> × 24317603751712749635475135065385713108463798602853624073122980303672606287841053760718599828659466819<101> × 599462659414655832299835092989001318798151488229328656325816031211337232445399573226985055225018125664950695249<111> |