GMP-ECM 7.0.4-dev [configured with MPIR 2.7.2, --enable-openmp] [ECM]
Input number is Phi(17604,10)/176041/440101/28458485569 (5811 digits)
Using B1=50000, B2=15446350, polynomial x^2, sigma=0:14172626676582148214
Step 1 took 169620ms
Step 2 took 34351ms
********** Factor found in step 2: 694362998385279301308589
Found probable prime factor of 24 digits: 694362998385279301308589
Composite cofactor (Phi(17604,10)/176041/440101/28458485569)/694362998385279301308589 has 5787 digits