Message boards : Science : base R550 (5k)
- n=100-300k, 5k left (57, 153, 225, 324, 609) - runtime 6min42s-1h22min (AVX@3.8Ghz) 227*550^159478-1 found by (lost by dbcrash) 581*550^270707-1 found by (lost by dbcrash) (TOP5000)