Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 238: | \[{7^{238}-1\over6}\] | 23 × 29 × 113 × 239 × 911 × 953 × 2381 × 4733 × 12377 × 14009 × 34273 × 377231 × 973897 × 20123377 × 2767631689 × 29078814248401<14> × 305213588009240737<18> × 440779823883628367834893<24> × 1910207075448557917128553<25> × 201025591283178955994074282189<30> × 20233569048347336836863191403341<32> |