Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 492: | \[{4^{492}-1\over3}\] | 3 × 5 × 7 × 13 × 17 × 83 × 241 × 739 × 2953 × 10169 × 13121 × 13367 × 165313 × 181549 × 3887047 × 12112549 × 43249589 × 62966161 × 164511353 × 802333429 × 8562191377<10> × 8831418697<10> × 6027043735173469<16> × 13194317913029593<17> × 177722253954175633<18> × 125965976976392564317<21> × 12243864122465612155106392056552353<35> × 36034153124236158775665988887328808295354925107894665253667088041792025629199746059239041<89> |