Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 678: | \[{3^{678}-1\over2}\] | 22 × 7 × 13 × 227 × 1583 × 16273 × 29833 × 362053 × 2172539 × 156472231 × 1783853257 × 11179590817<11> × 51017244973<11> × 506559378229<12> × 283274887324515433<18> × 1052915894677891021<19> × 612796856501249407843<21> × 30480028548011478116867184763<29> × 3626038130651680583578933430931295416667<40> × 526256453012063980796131127321354599535039<42> × 3593644700262187007115600246295631389617434711376028464247367822157434667812509<79> |