Message boards : Science : base S972 (8k)
- n=200-300k, 8k left (41, 64, 100, 162, 167, 176, 182, 183) - runtime 44min-1h42min (AVX@3.8Ghz) 120*972^124768+1 found by Hartmut 138*972^156865+1 found by whizbang