Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 470: | \[{4^{470}-1\over3}\] | 52 × 11 × 31 × 41 × 283 × 941 × 2351 × 3761 × 4513 × 13264529 × 894434441 × 2391314881 × 7484047069<10> × 72296287361<11> × 87255998201<11> × 165768537521<12> × 328006342451<12> × 3357909154141<13> × 38425816980821<14> × 140737471578113<15> × 3237811125343321<16> × 461797907949997211<18> × 722501809616926841<18> × 235457374510092115086834691<27> × 33869483802755570065477644041<29> × 73202300395158005845473537146974751<35> |