S720
 

S720 tested n=25K-50K

57*720^26004+1 is prime

Results emailed - Base released

S720 is now a 2ker

S730
 

S730 tested n=25K-50K - Nothing found

Results emailed - Base released

S746
 

S746 tested n=25K-50K

41*746^34969+1 is prime
47*746^47853+1 is prime

Results emailed - Base released

S746 is now a 4ker

S748
 

S748 tested n=25K-50K

13*748^32635+1 is prime

Results emailed - Base released

S748 is now a 2ker

S753
 

S753 tested n=25K-50K - Nothing found

Results emailed - Base released

Reserving R555 and S555 to n=25K.

S754
 

S754 tested n=25K-50K

214*754^32727+1 is prime

Results emailed - Base released

S754 is now a 3ker

S761
 

S761 tested n=25K-50K - Nothing found

Results emailed - Base released

S767
 

S767 tested n=25K-50K - Nothing found

Results emailed - Base released

R752
 

Completed to n=100000 and released. Nasty base. Only 1 (of 9) k removed from n=30000 to n=100000.

59*752^70888-1 is prime (and previously reported).

Residues e-mailed to Gary (too large for forum).

R1029 tested to n=300k, no prime. Continuing. Next goal (and status update) n=350k.