Mersenne Prim Number
M9 = 2 61 -1


Max: 61 -- Prim count :18 -- time calc finish:       0.00 s -- time count finish:       0.07 s
calc 2^61 -1
      0.00 s 2025/09/14 10:06 done

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Rolf LANG - Remsstr. 39 - 71384 Weinstadt | 10:06:43 up 37 days, 7:38, 0 user, load average: 0.41, 0.26, 0.19