From 3077f85279cc02846602cc8a5a106be8f5b17ccf Mon Sep 17 00:00:00 2001
From: zh <2088376133@qq.com>
Date: Mon, 18 Sep 2023 04:16:59 +0000
Subject: [PATCH] add 2209040021/chaoter_1.3.

Signed-off-by: zh <2088376133@qq.com>
---
 2209040021/chaoter_1.3 | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 2209040021/chaoter_1.3

diff --git a/2209040021/chaoter_1.3 b/2209040021/chaoter_1.3
new file mode 100644
index 00000000..f70ea4ab
--- /dev/null
+++ b/2209040021/chaoter_1.3
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <math.h>
+void main(){
+    int m; 
+    int i;  
+    int k;   
+    printf("输入一个整数：");
+    scanf("%d",&m);
+    k=(int)sqrt( (double)m );
+    for(i=1;i<=k;i++)
+        if(m%i==0)
+            break;
+    if(i>k)
+        printf("%d是素数。\n",m);
+    else
+        printf("%d不是素数。\n",m);
+ 
+    return 0;
+}
\ No newline at end of file
-- 
Gitee