GMP-ECM 6.4.4 [configured with GMP 6.0.0, --enable-asm-redc] : PRP
factordb.com : PRP to bases 2 , 3 , 5 , 7
PrimeForm v. 0.4 Upd.4 : PRP to bases 149 , 151
including trial-division to : 5464256
custom code : strongly-probable prime to prime bases 5078933 ,
5078939 , 5078951 , 5078959 , 5078977 , and 5078993 .
Define np ( n1 ) = n1^n1 + (n1+1)^(n1+1) .
Let a = 12545 .
Let p = np ( a ) / ( 1584571 * 19137767639 ) .
p is a 51404-digit strongly-probable prime .
p*(p-1) + a has 102807 digits .
np ( p*(p-1) + a ) has more .
p divides np ( p*(p-1) + a ) .
To be completed...