1. Prime Numbers

Prime numbers are positive integers that are more than one. Prime numbers have only two numbers dividing the numbers themselves and 1. The first ten prime numbers are 2,3,5,7,11,13,17,19,23 and 29.

        Examples: 2 and 3 are prime numbers.

4 is not a prime number because 4 is divided

Definition: An original parameter P, P> 1 is called a prime number if and only if P has a dividing factor of 1 and P itself.

2. Composite Numbers

A composite number is a positive integer if the number has another divisor except the number itself from 1. The composite number has more than 2 set dividers. The first ten composite numbers are 4,6,8,9,10,12,14,15 and 18.

        Example: 2×2 = 4 or 2x2x2 = 8

where there are multiples of 2 or more prime numbers.

Definition: An natural number q, called a composite number, if and only if q has more than two factors, namely factor 1 and itself.

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