Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 649: | \[{3^{649}-1\over2}\] | 23 × 3851 × 989909317 × 14425532687<11> × 489769993189671059<18> × 673916750371782811556809634401<30> × 423327054245128002718171385159536210624237<42> × 3175352444333493765540976162522161114881431751<46> × 15085422068047701255996957660890445982732633519169170463921377<62> × 264857234891885357293472716554403524440102931379709064204560277586725703303189224958129103<90> |