GMP-ECM 7.0.4-dev [configured with MPIR 2.7.2, --enable-openmp] [ECM] Input number is Phi(140246,10) (70122 digits) Using B1=10000, B2=1678960, polynomial x^1, sigma=0:2980889505584145242 Step 1 took 503883ms Step 2 took 137203ms ********** Factor found in step 2: 13404911453460721 Found probable prime factor of 17 digits: 13404911453460721 Composite cofactor (Phi(140246,10))/13404911453460721 has 70106 digits Using B1=10000, B2=1678960, polynomial x^1, sigma=0:7756188997315743438 Step 1 took 505209ms Step 2 took 138513ms ********** Factor found in step 2: 8300863170079700491331 Found probable prime factor of 22 digits: 8300863170079700491331 Composite cofactor ((Phi(140246,10))/13404911453460721)/8300863170079700491331 has 70084 digits