Answer Posted / chandrababu

Please use below code to display prime number between 1 and N


0001.00 IDENTIFICATION DIVISION.
0002.00 PROGRAM-ID. COBOL31.
0003.00 AUTHOR. DURGA400.
0003.01 DATA DIVISION.
0003.02 WORKING-STORAGE SECTION.
0003.03 77 VAR PIC 9(3) VALUE 2.
0003.04 77 NUM PIC 9(3).
0003.05 77 REM PIC 99.
0003.06 77 REM1 PIC 99.
0003.07 77 QNT PIC 99.
0003.08 77 CNT PIC 99.
0004.00 PROCEDURE DIVISION.
0005.01 ACCEPT NUM.
0005.13 PERFORM 100-PARA TEST AFTER UNTIL VAR > NUM.
0005.14 100-PARA.
0005.15 IF VAR = 2
0005.16 DISPLAY "PRIME NUMBER " VAR
0005.17 ELSE
0005.19 PERFORM 200-PARA VARYING CNT FROM 2 BY 1 UNTIL CNT >= VAR
0005.20 DISPLAY "PRIME NUMBER " VAR
0005.21 END-IF.
0005.22 COMPUTE VAR = VAR + 1.
0005.25 999-END.
0005.26 STOP RUN.
0005.27 HALT.
0005.28 200-PARA.
0005.29 DIVIDE VAR BY CNT GIVING QNT REMAINDER REM
0005.30 IF REM = 0
0005.31 COMPUTE VAR = VAR + 1
0005.32 GO TO 100-PARA
0005.33 END-IF.
****************** End of data ************


Regards,
Chandrababu

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