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- 5 ONERRORGOTO1000
- 10 MODE8:DIM:x=2:c$=CHR$(5)
- 20 CLS:PRINT"Prime factors (2óBase<10Çø)";:a$=" *"
- 40 LOCATE0,1:PRINTc$;"Base ?";:INPUT@11;x:LOCATE0,0
- 45 IFx<2 ORx>=1e10 ORFRACx<>0 THEN40
- 50 LOCATE0,1:PRINTc$;x;"= .....";
- 60 u=0:v=0:n=1:t$="":a=x
- 70 GOTO130
- 100 u=2:GOSUB500
- 110 a=a/2
- 120 IFa-1=0 THEN240
- 130 IFFRAC(a/2)=0 THEN100
- 140 b=3
- 150 c=SQRa+1
- 160 IFb>=c THEN230
- 170 IFFRAC(a/b)=0 THEN190
- 180 b=b+2:GOTO160
- 190 IFa/b*b-a=0 THEN210
- 200 GOTO180
- 210 u=b:GOSUB500
- 220 a=a/b:GOTO150
- 230 u=a:GOSUB500
- 240 a$="":GOSUB530
- 250 PRINTc$;x;"=";t$;:z$=INPUT$(1,@):GOTO20
- 500 IFv=u THENn=n+1:GOTO550
- 520 IFv=0 THEN550
- 530 IFn>1 THENt$=t$+STR$(v)+"^"+MID$(STR$(n),2)+a$ ELSEt$=t$+STR$(v)+a$
- 540 n=1
- 550 v=u:RETURN
- 1000 IFERR=1 THENCLS:ONERRORGOTO0
- 1010 IFERL=40 THENRESUME40
- 1050 LOCATE0,1:PRINTc$;"not found";:z$=INPUT$(1,@):RESUME20
-