Finding prime numbers without actual checking the factor of a number || Sieve of Eratosthenes.

Finding prime numbers without actual checking the factor of a number || Sieve of Eratosthenes.
this is a method in which you find prime numbers without doing their factors.
This method was given by a Greek Mathematician, ERATOSTHENES. It is very useful method for finding prime numbers between 1 to 100.
eratosthenes method of finding prime numbers

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Good Explanation