Mersenne Prim Number
M9 = 2 61 -1


Max: 61 -- Prim count :18 -- time calc finish:       0.00 s -- time count finish:       0.03 s
calc 2^61 -1
      0.00 s 2026/04/13 14:29 done

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Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 14:29:33 up 112 days, 19:39, 1 user, load average: 0.94, 0.94, 0.93