Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 667: | \[{3^{667}-1\over2}\] | 47 × 59 × 28537 × 310823 × 20381027 × 1001523179 × 55455709996667<14> × 25359506465081394537400918368811516993503730623239065990152596258171619851<74> × 1230272830905372645155936347582471802810001959890217331006615213107201195904714920966951311311387729777205064177180055078095657461958973281700356722080397000095160208423082302916300621936315289528078031<202> |