RosettaCodeData/Task/Loops-Increment-loop-index-within-loop-body/11l/loops-increment-loop-index-within-loop-body.11l

F is_prime(n)
   L(x) (2, 3)
      I n % x == 0
         R n == x
   Int64 d = 5
   L d * d <= n
      L(x) (2, 4)
         I n % d == 0
            R 0B
         d += x
   R 1B

Int64 i = 42
V n = 0
L n < 42
   I is_prime(i)
      n++
      print(‘n = #2 #16’.format(n, i))
      i += i - 1
   i++