| 100 REM "Calculate the first N prime numbers" | |
| 110 REM "and output them!" | |
| 200 CLR | |
| 210 INPUT "How many primes (0=stop)? ", N | |
| 220 IF N=0 THEN 500 | |
| 230 DIM P(N): P(1)=2: P(2)=3: I=2 | |
| 240 IF I=N THEN 360 | |
| 250 K=P(I) | |
| 260 K=K+2 | |
| 270 L=SQR(K) | |
| 280 J=1 | |
| 290 D=P(J) | |
| 310 M=K%D | |
| 320 IF M=0 THEN 260 | |
| 330 IF D<L THEN J=J+1: GOTO 290 | |
| 340 I=I+1: P(I)=K | |
| 350 GOTO 240 | |
| 360 PRINT "The first",N ,"primes are:" | |
| 370 FOR J=1 TO N | |
| 380 PRINT #4,J ,P(J) | |
| 390 NEXT | |
| 400 GOTO 200 | |
| 500 END | |