GMP-ECM 7.0.4-dev [configured with MPIR 2.7.2, --enable-openmp] [ECM]
Input number is Phi(20284,10)/4826297069441 (9188 digits)
Using B1=40000, B2=10672212, polynomial x^2, sigma=0:12284103935993110277
Step 1 took 256357ms
Step 2 took 52463ms
********** Factor found in step 2: 10426191195249393969109
Found probable prime factor of 23 digits: 10426191195249393969109
Composite cofactor (Phi(20284,10)/4826297069441)/10426191195249393969109 has 9166 digits