diff --git a/primenumber in array.js b/primenumber in array.js
new file mode 100644
index 0000000..f7f6418
--- /dev/null
+++ b/primenumber in array.js	
@@ -0,0 +1,13 @@
+//prime number in array
+var arr = [1,2,3,4,5,6,7,8,9,10,11];
+for(var i=0;i<arr.length;i++){
+    var count=0;
+    for(var j=1;j<i;j++){
+        if(arr[i]%j===0){
+        count++;
+        }
+    }
+    if(count===1){
+        console.log(arr[i]);
+    }
+}
\ No newline at end of file