Message boards : Science : base S628 (7k)
- n=100-300k, 7k left (16, 295, 334, 426, 579, 889, 984) - runtime 9min18s-1h48min (AVX@3.8Ghz) 460*628^182346+1 found by whizbang (TOP5000) 460*628^276994+1 found by Doug (TOP5000)