GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Input number is Phi(13384,10) (5713 digits)
Using B1=44000, B2=10679142, polynomial x^2, sigma=1:32536197
Step 1 took 56313ms
Step 2 took 13656ms
********** Factor found in step 2: 576010318801696546769
Found probable prime factor of 21 digits: 576010318801696546769
Composite cofactor (Phi(13384,10))/576010318801696546769 has 5692 digits