GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Input number is Phi(16168,10)/2589644191044553/6559070566375577 (7697 digits)
Using B1=250000, B2=183032866, polynomial Dickson(3), sigma=1:2811823498
Step 1 took 531012ms
Step 2 took 105768ms
********** Factor found in step 2: 2867443649364054475343041995521
Found prime factor of 31 digits: 2867443649364054475343041995521
Composite cofactor (Phi(16168,10)/2589644191044553/6559070566375577)/2867443649364054475343041995521 has 7667 digits