diff --git a/Arrays/cpp/PrimeSeive.cpp b/Arrays/cpp/PrimeSeive.cpp
new file mode 100644
index 0000000..110dfff
--- /dev/null
+++ b/Arrays/cpp/PrimeSeive.cpp
@@ -0,0 +1,44 @@
+#include<iostream>
+using namespace std;
+void primeSieve(int *p,int n){
+    int i;
+    for(i=2;i<=5000000; i++)
+    {
+        p[i]=1;
+    }
+    
+    for(i=2;i<=5000000;i++)
+    {
+        if(p[i]==1)
+        {
+            
+            for(int j=i*i;j<=5000000;j+=i)
+            {
+                p[j]=0;
+            }
+        }
+    }
+    p[1]=0;
+    p[0]=0;   
+    return ;
+}
+int main() {
+    int arr[5000001] = {0};
+    int n;
+    cin>>n;
+    int counter = 0;
+    primeSieve(arr,n);
+    for(int i=0;i<=5000000;i++)
+    {
+        if(arr[i]==1)
+        {
+            counter++;
+        }
+        if(counter==n){
+            cout << i;
+            break;
+        }
+    }
+    
+    return 0;
+}