Message boards : Science : base R447 (2k)
- n=300-500k, 2k left (78, 118) - runtime 1h05min-3h (AVX@3.8Ghz) 146*447^187198-1 found by Woodles (TOP5000) 146*447^254042-1 found by grcpool.com (TOP5000) (Duplicate)