0 the modulus m
1 output from gp
2 initial list of composites
3 left and right prime bounds of multiples
4 rho search around 2m
5 precprime(m)-1 and precprime(2m)-1
6 202-digits
7 simplified 4 (composites around 2m)
8 204 digits (without running into a prime)
9 a 31 digit factor to the 204-digit, bringing down to 173
10 circular numbers
11 circular til 1000