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Task/Semiprime/ERRE/semiprime.erre

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+PROGRAM SEMIPRIME_NUMBER
+
+!VAR I%
+
+PROCEDURE SEMIPRIME(N%->RESULT%)
+   LOCAL F%,P%
+   P%=2
+   LOOP
+       EXIT IF NOT(F%<2 AND P%*P%<=N%)
+       WHILE (N% MOD P%)=0 DO
+            N%=N% DIV P%
+            F%+=1
+       END WHILE
+       P%+=1
+    END LOOP
+    RESULT%=F%-(N%>1)=2
+END PROCEDURE
+
+BEGIN
+    PRINT(CHR$(12);) !CLS
+    FOR I%=2 TO 100 DO
+         SEMIPRIME(I%->RESULT%)
+         IF RESULT% THEN PRINT(I%;) END IF
+    END FOR
+    PRINT
+END PROGRAM