GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM] Input number is Phi(16548,10)/99289 (4699 digits) Using B1=250000-250000, B2=183032866, polynomial Dickson(3), sigma=0:13999355835835374397 Step 1 took 0ms Step 2 took 50248ms ********** Factor found in step 2: 32346281503803379241583721 Found prime factor of 26 digits: 32346281503803379241583721 Composite cofactor (Phi(16548,10)/99289)/32346281503803379241583721 has 4674 digits GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM] Input number is (Phi(16548,10)/99289)/32346281503803379241583721 (4674 digits) Using B1=250000-250000, B2=183032866, polynomial Dickson(3), sigma=0:6792191774225017239 Step 1 took 0ms Step 2 took 54585ms ********** Factor found in step 2: 3298621327616170685375569 Found prime factor of 25 digits: 3298621327616170685375569 Composite cofactor ((Phi(16548,10)/99289)/32346281503803379241583721)/3298621327616170685375569 has 4649 digits