SOLUTION: Easy way of identifying prime numbers between 200 and 300

Algebra ->  Divisibility and Prime Numbers -> SOLUTION: Easy way of identifying prime numbers between 200 and 300      Log On


   



Question 676572: Easy way of identifying prime numbers between 200 and 300
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
Use the Sieve of Eratosthenes.


1. List all the numbers from 2 to the number in question.


2. Start with 2. Cross out all multiples of 2.


3. Go to the next number not crossed out. It will be a prime. Cross out all its multiples.
4. Repeat until there is no next uncrossed number.

Hope the solution helped. Sometimes you need more than a solution. Contact fcabanski@hotmail.com for online, private tutoring, or personalized problem solving (quick for groups of problems.)