составьте кроссворд. 12 вопросов (6 на перевод из десятичной сс и 6 в десятичную).

DIM x AS INTEGER, y AS INTEGER
DIM f AS INTEGER, p AS INTEGER
CLS
FOR x = 0 TO 40
   y = x * x + x + 41
   IF y MOD 2 = 0 THEN f = -1 ELSE f = 0
   p = 3
   DO WHILE f = 0 AND p * p <= y
      IF y MOD p = 0 THEN f = -1 ELSE f = 0
      p = p + 2
   LOOP
   IF f = 0 THEN
      PRINT "x="; x, "y="; y, "Is Prime"
   ELSE
      PRINT "x="; x, "y="; y, "Not Prime"
   END IF
NEXT x
END

Обнаружился странный эффект qBASIC.
Последовательность команд:
y:=x^2+x+41 для x=40 присваивает у значение 1681.
Для p=41 значение p^2 также равно 1681, но значение выражения
p^2<=y при этом оказывается ложным, хотя p^2 в этом случае должно быть равно у.
В связи с этой странностью вместо х^2 использовано х*х, а вместо p^2 использовано р*р.

Результат выполнения программы:
x= 0          y= 41         Is Prime
x= 1          y= 43         Is Prime
x= 2          y= 47         Is Prime
x= 3          y= 53         Is Prime
x= 4          y= 61         Is Prime
x= 5          y= 71         Is Prime
x= 6          y= 83         Is Prime
x= 7          y= 97         Is Prime
x= 8          y= 113        Is Prime
x= 9          y= 131        Is Prime
x= 10         y= 151        Is Prime
x= 11         y= 173        Is Prime
x= 12         y= 197        Is Prime
x= 13         y= 223        Is Prime
x= 14         y= 251        Is Prime
x= 15         y= 281        Is Prime
x= 16         y= 313        Is Prime
x= 17         y= 347        Is Prime
x= 18         y= 383        Is Prime
x= 19         y= 421        Is Prime
x= 20         y= 461        Is Prime
x= 21         y= 503        Is Prime
x= 22         y= 547        Is Prime
x= 23         y= 593        Is Prime
x= 24         y= 641        Is Prime
x= 25         y= 691        Is Prime
x= 26         y= 743        Is Prime
x= 27         y= 797        Is Prime
x= 28         y= 853        Is Prime
x= 29         y= 911        Is Prime
x= 30         y= 971        Is Prime
x= 31         y= 1033       Is Prime
x= 32         y= 1097       Is Prime
x= 33         y= 1163       Is Prime
x= 34         y= 1231       Is Prime
x= 35         y= 1301       Is Prime
x= 36         y= 1373       Is Prime
x= 37         y= 1447       Is Prime
x= 38         y= 1523       Is Prime
x= 39         y= 1601       Is Prime
x= 40         y= 1681       Not Prime

Программа составлена для условия m∈[2,k], n∈[1;k], m>n

CLS
INPUT "k=", k
FOR m = 2 TO k
   FOR n = 1 TO m - 1
      a = m ^ 2 - n ^ 2: b = 2 * m * n: c = m ^ 2 + n ^ 2
      PRINT m, n, a, b, c
   NEXT n
NEXT m
END

Тестовое решение:
k=5
2             1             3             4             5
3             1             8             6             10
3             2             5             12            13
4             1             15            8             17
4             2             12            16            20
4             3             7             24            25
5             1             24            10            26
5             2             21            20            29
5             3             16            30            34
5             4             9             40            41