GMP-ECM 7.0.5-dev [configured with GMP 6.2.1, --enable-asm-redc, --enable-assert] [ECM]
Input number is (10^260+7)/149/710175419/89657383592542053343269989786818818378161 (209 digits)
Using B1=110000000, B2=776278396540, polynomial Dickson(30), sigma=1:4035040124
Step 1 took 181463ms
Step 2 took 63939ms
********** Factor found in step 2: 66473030434657428826146491767385140082142594197
Found prime factor of 47 digits: 66473030434657428826146491767385140082142594197
Prime cofactor ((10^260+7)/149/710175419/89657383592542053343269989786818818378161)/66473030434657428826146491767385140082142594197 has 162 digits