TI-99/4A Primes

Being a fan of old hardware, I used the TI-99/4A (released in 1981) to calculate some primes.
The code is written in BASIC, the programming language found on most computers of this era.
Further information on the TI can be found in this Wikipedia article.

TI-99 4A Start ScreenPrime ProgramTI-99 4A

1   REM TI-99/4A BASIC Code
2   REM Jonathan Frech 20th of May, 2016

10  PRINT 2
20  N=1
30  N=N+2
40  FOR X=2 TO N-1
50  D=N
60  D=D-X
70  IF D>0 THEN 60
80  IF D=0 THEN 30
90  NEXT X
110 GOTO 30

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