diff --git a/src/week2/BOJ3474/BOJ3474_V1.cpp b/src/week2/BOJ3474/BOJ3474_V1.cpp
new file mode 100644
index 0000000..49e83f2
--- /dev/null
+++ b/src/week2/BOJ3474/BOJ3474_V1.cpp
@@ -0,0 +1,34 @@
+#include <bits/stdc++.h>
+using namespace std;
+vector<long long> ret;
+int N;
+int T;
+int get_num_cnt(long long target_num, long long num) {
+    while(num <target_num)
+        num *= num;
+
+    long long cnt = 0;
+    while(num != 1) {
+        cnt += (target_num / num);
+        num /= 5;
+    }
+
+    return cnt;
+}
+int main() {
+
+
+    cin >> T;
+
+    for (int i = 0; i < T; i++) {
+        cin >> N;
+        long long cnt_5 = get_num_cnt(N, 5);
+        ret.push_back(cnt_5);
+    }
+
+    for (int i = 0; i < ret.size(); i++) {
+        cout << ret[i] << "\n";
+    }
+
+    return 0;
+}
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