GMP-ECM 7.0.4-dev [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Input number is Phi(23204,10)/34590691128181/103581478280981/513864793446562049/26336134801278847728943260229 (11527 digits)
Using B1=4000, B2=376750, polynomial x^1, sigma=1:81986193
Step 1 took 15335ms
Step 2 took 4805ms
********** Factor found in step 2: 28831132202805181
Found prime factor of 17 digits: 28831132202805181
Composite cofactor (Phi(23204,10)/34590691128181/103581478280981/513864793446562049/26336134801278847728943260229)/28831132202805181 has 11510 digits
# known to factordb.com before March 17, 2011