Message boards : Science : base R281 (running) (2k)
- n=500-800k, 2k left (38, 314) - runtime 1h44min-5h48min (AVX@3.9Ghz) - 15528 WUs 112*281^133589-1 found by CharityEngine2 272*281^162232-1 found by vaughan 112*281^218429-1 found by CharityEngine2 (TOP5000)