diff --git a/prime_number.c b/prime_number.c
new file mode 100644
index 0000000..685c277
--- /dev/null
+++ b/prime_number.c
@@ -0,0 +1,24 @@
+public class PrimeNumber{    
+static void checkPrime(int n){  
+  int i,m=0,flag=0;      
+  m=n/2;      
+  if(n==0||n==1){  
+   System.out.println(n+" is not prime number");      
+  }else{  
+   for(i=2;i<=m;i++){      
+    if(n%i==0){      
+     System.out.println(n+" is not prime number");      
+     flag=1;      
+     break;      
+    }      
+   }      
+   if(flag==0)  { System.out.println(n+" is prime number"); }  
+  }//end of else  
+}  
+ public static void main(String args[]){    
+  checkPrime(1);  
+  checkPrime(3);  
+  checkPrime(17);  
+  checkPrime(20);  
+}    
+}