diff --git a/content/russian/cs/factorization/eratosthenes.md b/content/russian/cs/factorization/eratosthenes.md
index acf47749..ed5a436c 100644
--- a/content/russian/cs/factorization/eratosthenes.md
+++ b/content/russian/cs/factorization/eratosthenes.md
@@ -87,12 +87,12 @@ int d[n + 1];
 vector<int> p;
  
 for (int k = 2; k <= n; k++) {
-    if (p[k] == 0) {
+    if (d[k] == 0) {
         d[k] = k;
         p.push_back(k);
     }
     for (int x : p) {
-        if (x > d[k] || x * d[k] > n)
+        if (x > d[k] || x * k > n)
             break;
         d[k * x] = x;
     }