Some of the properties of prime numbers are:Д®very number that is greater than 1 can be divided by at least one prime number.Д®very even positive integer greater than the number 2 can be expressed as the sum of two primes.Д®xcept for number 2, all other prime numbers are odd.

Students can practice this method, by writing the positive integers from the numbers 1 to 1000 and circling the prime numbers, and putting a cross mark to all the composite numbers. Eratosthenes took the example of a sieve to filter out the prime numbers from a list of natural numbers and drain out the composite numbers. The prime number was discovered by Eratosthenes (275-194 B.C.). So any prime number should have only two factors and the number should be greater than 1. This means that number 1 can never be a prime number. Similarly, we can say for the numbers 2, 3, 5, 7, 13, 17, вЂ¦ etc can only be written in two forms with a single factor as 1, hence are the prime numbers.Д®ach prime number is only divisible by the number 1 and itself.

So, we can say that 11 is a prime number. There is no other way of writing the number 11. Let us see a few examples of prime numbers and the list of prime numbers from 1 to 1000.ДЇor example, let us take a number for example 11. The prime number is known to be the simplest of a number. The numbers that have factors 1 and number itself are known as prime numbers. Every prime number has exactly 2 factors.

Make a list of prime numbers