![]() ![]() Odd composite numbers are all the odd natural numbers greater than 1, which are not prime.Įxamples: 9, 15, 21, 27, 33 2. It also cannot be represented as the product of two prime numbers as 41 = 1 × 41(where 41 is prime but 1 is not) TypesĬomposite numbers can be classified into two types: 1. However, 41 is not divisible by any prime number like 2, 3, 5, 7, 11, 13, smaller than 41. Similarly, 81 is a composite number as it is completely divisible by the prime number 3, and 81 = 3 × 3 × 3 × 3 = 3 4. Thus, it has more than two factors and is a composite number. As it is an even number, it is completely divisible by 2. Thus to find a composite number, we perform the divisibility test and check if it is completely divisible by at least one prime number smaller than itself.įor example, let us consider 40. Here we have provided a chart from 1 to 100. ![]() We can also represent the list of composite numbers in a chart, as it is visually more appealing and easy to use for various mathematical calculations. Thus, there are 74 composite numbers between 1 and 100. Here we have listed down all the composite numbers from 1 to 100. So it is neither prime nor a composite number. Since 0 has infinite factors, it is not a composite number.ġ has only one factor, ‘1’ itself. For example, 5 is divisible only by 1 and 5, and thus it is a prime number. Such numbers only have two factors: 1 and the number itself. ![]() In contrast, numbers that are not composite are prime numbers. ![]()
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