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Prime numbers are natural numbers that are divisible by only 1 and the number itself. In other words, prime numbers are positive integers greater than 1 with exactly two factors, 1 and the number itself. Some of the prime numbers include 2, 3, 5, 7, 11, 13, etc. Always remember that 1 is neither prime nor composite. Also, we can say that except for 1, the remaining numbers are classified as prime and composite numbers . All prime numbers are odd numbers except 2, 2 is the smallest prime ... A prime number is a natural number greater than 1 and has exactly two positive divisors: 1 and itself. Numbers that have more than two divisors are called composite numbers Smallest known PRime Largest Prime Number There are much larger Prime Numbers which is discovered and the method which is used to discover the larger primes is GIMPS (Great Internet Mersenne Prime Search) [a prime number of the form 2p -1, is called Mersenne Primes]. The smallest prime number is 2. Prime numbers are positive integers greater than 1 that have exactly two positive divisors, 1 and the number itself. In other words, a prime number is a number that is only divisible by 1 and itself. Examples of other prime numbers are 3, 5, 7, 11, and 13. Whereas, 4, 6, 8, and 9 are not prime because they have other divisors in addition to 1 and themselves. Prime numbers play an essential role in number theory and have many applications in cryptography and ...