Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 845: | \[{4^{845}-1\over3}\] | 11 × 31 × 131 × 2731 × 4057 × 6761 × 8191 × 103091 × 108161 × 409891 × 7623851 × 4493034001<10> × 6740339310641<13> × 145295143558111<15> × 4929910764223610387<19> × 18526238646011086732742614043<29> × 3340762283952395329506327023033<31> × 367082334680413807808582241279931<33> × 53928095661079461754990292241379839311<38> × 42156379589779912226383108151000450094080783333678881<53> × 59681692648573840850135469939435684030210502509194331898325240298000994313740210725387641<89> × 287282708715244103685014077967167854244103153501447576012208890261261392713614451150289222934411457607080252131792042266424438261450262286271<141> |