Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 925: | \[{4^{925}-1\over3}\] | 11 × 31 × 223 × 251 × 601 × 1481 × 1777 × 1801 × 4051 × 25781083 × 27281951 × 28136651 × 616318177 × 1587855697992791<16> × 7248808599285760001152755641<28> × 86759605608601233853529454601<29> × 778429365397887608540618330873281<33> × 191298801767168561114002084669872063119821906902329171022067040679355100505963917404335406035751995698400401<108> × 29733674096562116407371127177402470526470287524319983295999914502844123935574958238873417310883039367473824401<110> × 2257436864072202827294931470522533993043285627898784505166969671947021541106719772338571902055896447365119452059422036426917626910690428254442309879428329624267910530161312222097351<181> |