Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 670: | \[{3^{670}-1\over2}\] | 22 × 112 × 61 × 221101 × 2313511 × 5390821 × 20391451 × 441019876741<12> × 475384700124973<15> × 2791110259168381<16> × 1551109145231525881<19> × 4299412981246169975118907<25> × 16550242918542985579947359198714731038177262225517957599825301823481939178900396192547493300141<95> × 218742867755426762311941219108310088458792042613637623789553431857170623561390378292171945441992861442756206821<111> |