Initial commit

lab1-Diffie-Hellman/app/core/prime_utils.py

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+def is_prime(n: int) -> bool:
+    """Проверка на простоту"""
+    if n < 2:
+        return False
+    if n % 2 == 0:
+        return n == 2
+    d = 3
+    while d * d <= n:
+        if n % d == 0:
+            return False
+        d += 2
+    return True