Message boards : Science : base R138 (5k)
- n=300-500k, 5k left (408, 688, 831, 1074, 1743) - runtime 43min-2h10min (AVX@3.8Ghz) 421*138^272919-1 found by whizbang (TOP5000) 773*138^249730-1 found by Skivelitis2 (TOP5000)