Message boards : Science : base R994 (4k)
- n=100-300k, 4k left (26, 69, 141, 201) - runtime 9min30s-1h37min (AVX@3.8Ghz) 209*994^154302-1 found by RFGuy_KCCO (TOP5000) 221*994^224221-1 found by CharityEngine1 (TOP5000)