GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Input number is Phi(19742,10)/11679722557 (9860 digits)
Using B1=50000, B2=15446350, polynomial x^2, sigma=1:2630644839
Step 1 took 149184ms
Step 2 took 32215ms
********** Factor found in step 2: 2150789579965065247493
Found prime factor of 22 digits: 2150789579965065247493
Composite cofactor (Phi(19742,10)/11679722557)/2150789579965065247493 has 9839 digits