Thread: Trial Divison Improvement View Single Post 2016-11-30, 03:48 #2 paulunderwood   Sep 2002 Database er0rr F8816 Posts From pfgwdoc.txt: Code: -f[percent][[{Mod_Expr}][{condition}[{condition}...]]] Modular factoring: -f{801} uses only primes which are of the form k*801+1 -f{632,-1} uses only primes which are of the form k*632-1 ** The {801} and the {632,-1} are the optional {Mod_Expr} *** NOTE new code added to do both -1 and +1. the format would be -f{801,+-1} (the +-1 MUST look just like that) -f{256}{y,8,1) uses only primes which are of the form k*256+1 where the resultant primes are also of the form j*8+1 -f{256}{n,8,1) uses only primes which are of the form k*256+1 where the resultant primes are not of the form j*8+1 -f500{256}{y,8,1){y,8,7){n,32,1) uses only primes which are of the form k*256+1 where the resultant primes are also of the form j*8+-1 but not j*32+1. There is also a 500% factoring level. -f{8132}{y,8,1){f,8132} uses only primes which are of the form k*8132+1 where the resultant primes are also of the form j*8+1. Also, all factors of 8132 (2,19,107) are checked first. -f{8132}{y,8,1){p,8133} uses only primes which are of the form k*8132+1 where the resultant primes are also of the form j*8+1. Also, ALL primes <= 8133 are checked first. Note this is also available within the ABC and ABC2 file formats, and within those formats, expressions can also be used. Last fiddled with by paulunderwood on 2016-11-30 at 03:51  