If you look at this WU there is 7 results. It looks like to me that is nearly impossible that 2 of 7 computers cannot give correct result? I have never returned errored or invalid results, but in this case it looks so :(
____________ 9 *10^1009567-1 REPDIGIT MEGA PRIME :) :) :)
57*2^3339932-1 MEGA PRIME :)
4 *737^269302+1 GENERALIZED FERMAT :)
Proud member of team Aggie The Pew. Go Aggie!