Message boards : Science : base S6 (10k)
- n=2-4M, 10k left (13215, 14505, 50252, 76441, 87800, 97131, 112783, 127688, 166753, 168610) - runtime 4-16h (AVX@4Ghz) 139413*6^1279992+1 found by Grey (TOP5000) 124125*6^2018254+1 found by vanos0512 (TOP5000)