Without knowing the two exact prime numbers, a hacker cannot get the credit card information. Because there is an unknown number of prime numbers, it is impossible to break down the composite number into its two prime factors. The composite numbers are used as codes that are usually extremely large. The composite number is identified by the computer, but only the bank knows the two original prime numbers. This concept is used for encryption codes by multiplying two prime numbers together. We know that a prime number is only divisible by itself and the number one, and we get a composite number when we multiply two prime numbers together. One of the most popular methods of encryption makes use of prime and composite numbers. To make sense of the encrypted information, a key to the code is needed. The computer uses a code to identify a person’s credit card.īefore the buyer’s information of the credit card is sent through cyberspace, it is encrypted to protect it from being hacked by someone. There are some real-life applications of the composite and prime numbers.įor example, whenever someone purchases any item online that involves a credit card, prime and composite numbers participate in the transaction process. Uses of Prime and Composite Numbers in Real life Let us apply prime factorization for some composite and prime numbers. Prime factors are factors of a number that are prime numbers. Prime factorisation is a procedure to get the prime factors of a given number. Prime Factorisation of Composite and Prime Numbers In the following chart, the boxes coloured in blue are the composite numbers. Here is the list of composite numbers from \(1\) to \(100\). There are many composite numbers in the number system.
It means the HCF of two prime numbers is always \(1\).Ĭomposite Numbers List from \(1\) to \(100\) Chart Two prime numbers are always coprime to each other.All prime numbers are odd except \(2\) or we can say that \(2\) is the only even prime and the smallest prime number.A prime number can have only two factors.Some of the properties of prime numbers are: A composite number can be formed by the product of two or more prime numbers.A composite number is divisible by a composite number as well as a prime number.We can get a composite number if we multiply two or more two positive integers other than \(1\).
Composite numbers have more than two factors.Some properties of composite numbers are: Knowing some basic properties are essential to identify a prime number or a composite number. This list includes very exactly 5 133 distinct prime numbers.Properties of Composite and Prime Numbers This page lists all non-negative prime numbers from 0 to 50 000, ordered in an increasing fashion. List of prime numbers List of prime numbers
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