Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 649: | \[{4^{649}-1\over3}\] | 23 × 89 × 683 × 2833 × 37171 × 72689 × 179951 × 649001 × 1824726041 × 23952086159<11> × 3203431780337<13> × 5804125093339<13> × 851030708304492139579<21> × 248958833227314618649866043<27> × 34418203155300430111979265857<29> × 2025620548964486290862395942912830055105112948209849<52> × 32767281682276607841188751225918476164989874850468463300473<59> × 3700008265010484376181140059002735164665618094577260273009727474953442430219036282100642597609582698411614761090487936159280023273<130> |