Mersenne Prim Number
M8 = 2 31 -1


Max: 31 -- Prim count :11 -- time calc finish:       0.00 s -- time count finish:       0.07 s
calc 2^31 -1
      0.00 s 2025/09/14 10:06 done

                                                                                                    2147483647

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