GMP-ECM 7.0.4 [configured with GMP 6.1.2, --enable-asm-redc] [ECM]
Input number is Phi(2*6446,10) (5841 digits)
Using B1=4000, B2=376750, polynomial x^1, sigma=0:4825422575411956931
Step 1 took 6910ms
Step 2 took 2028ms
********** Factor found in step 2: 6044319878329815620341
Found prime factor of 22 digits: 6044319878329815620341
Composite cofactor (Phi(2*6446,10))/6044319878329815620341 has 5819 digits