Does the Sieve of Eratosthenes Efficiently Find Primes?

💡 The Answer

• It is an ancient algorithm that marks multiples of each prime starting from 2.
• Unmarked numbers are prime, providing a simple way to generate a list.
• The sieve works up to a given limit and is still used in elementary number theory.
• Its time complexity is O(n log log n), making it highly efficient for moderate ranges.