C167_159978_10401 completed - 42 hours for 7.4M matrix (TD=124).
Code:
p66 factor: 787126496154960281102951081984993212241255297073488500190935598353
p101 factor: 14274919968125360016556045848456525250506266432079996223880783223242349264498113565656436298922759813
https://pastebin.com/n3CuiaEc