Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 369: | \[2^{369}-1\] | 7 × 73 × 13367 × 3887047 × 164511353 × 6376386802464073<16> × 177722253954175633<18> × 242930150369581725249341464475421249205592384370695685937<57> |