GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Resuming ECM residue saved by alfred@ALFRED-HP-32-NE with GMP-ECM 7.0.4-dev on Mon Feb 19 16:31:10 2018
Input number is Phi(17214,10) (5400 digits)
Using B1=250000-250000, B2=183032866, polynomial Dickson(3), sigma=1:4190320218
Step 1 took 0ms
Step 2 took 20436ms
********** Factor found in step 2: 89292770324529415569663379
Found prime factor of 26 digits: 89292770324529415569663379
Composite cofactor (Phi(17214,10))/89292770324529415569663379 has 5375 digits