How to Use the Sieve of Eratosthenes for Finding Prime Numbers
Discover the efficient Sieve of Eratosthenes method to find prime numbers up to any limit.
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The Sieve of Eratosthenes is an efficient method to find all prime numbers up to a given limit. Start by writing down all numbers up to your limit and repeatedly mark the multiples of each prime starting with 2. The numbers that remain unmarked are prime.
FAQs & Answers
- What is the Sieve of Eratosthenes? It is an ancient algorithm for finding all prime numbers up to a specified integer.
- Why is the Sieve of Eratosthenes efficient? It systematically eliminates the multiples of each prime number, making it faster than trial division.
- What are prime numbers? Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves.