« first day (547 days earlier)      last day (684 days later) » 

12:03 PM
for prime $n$, the smallest "U" is
U 8269 32390 8269^8268+8268!<32390> = 3172029915...41<32390>
for the plus-version
and
U * 6007 22695 6007^6006-6006!<22695> = 4147032852...49<22695>
for the minus-version
 

« first day (547 days earlier)      last day (684 days later) »