Message boards : Science : base R87 (9k)
- n=500-700k, 9k left (172, 384, 672, 714, 848, 862, 1132, 1154, 1418) - runtime 1h09min-2h13min (AVX@3.9Ghz) 1112*87^143809-1 found by Ralfy 562*87^641685-1 found by Dukebox (TOP5000)