GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Input number is Phi(17204,10)/774181/11052877108901/8326249069788954701/17408476866727986469 (6983 digits)
Using B1=250000, B2=183032866, polynomial Dickson(3), sigma=1:1082311996
Step 1 took 464212ms
Step 2 took 96612ms
********** Factor found in step 2: 5584551059656041277300132051361
Found prime factor of 31 digits: 5584551059656041277300132051361
Composite cofactor (Phi(17204,10)/774181/11052877108901/8326249069788954701/17408476866727986469)/5584551059656041277300132051361 has 6953 digits