Count Primes - Unveiling the Sieve of Eratosthenes (Java)

May 26, 2025 · 4 min read · Introduction : Today, we venture into the world of number theory with a classic problem: "Count Primes" (LeetCode #204). At first glance, counting primes might seem like a simple loop, but to do it efficiently for larger numbers, we need a smarter ap...