Prime Number

A whole number greater than 1 which has only two factors, 1 and the number itself is called Prime number.

Example:- 2,3,5,7,11,13......

FACTS:

• 1 is neither a prime nor a composite number.
• 2 is the only even prime number.
• There are 25 prime numbers between 1 and 100.
• Every Prime number except 2 is an odd number.
• Every number greater than 1 can be divided by at least one prime number.
• Every even positive integer greater than 2 can be expressed as the sum of two primes.
• There are infinite number of Primes.
• Till date the largest known prime number is   (2^82,589,933 − 1) which has 24,862,048 digits.

                                                                                           
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