diff --git a/08. Analisis Kompleksitas/CekBilanganPrima.c b/08. Analisis Kompleksitas/CekBilanganPrima.c
new file mode 100644
index 0000000..86169e2
--- /dev/null
+++ b/08. Analisis Kompleksitas/CekBilanganPrima.c	
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <math.h>
+
+int main() {
+	int a,b,i,j,y;
+	scanf("%d",&b);
+	for(j=0;j<b;j++) {
+		scanf("%d",&a);
+		for(i=2;i<=trunc(sqrt(a));i++) {
+			if (a%i == 0) {
+				y = 1;
+			}
+		}
+		if (y || a == 1) {
+			y = 0;
+			printf("BUKAN\n");
+		}
+		else {
+			printf("YA\n");
+		}
+	}
+}