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Therefore, the Highest Common Factor (HCF) of the smallest composite number and the smallest prime number is 2. The smallest prime number is 2 and the smallest composite number is 4. Prime numbers are the numbers that have exactly two factors, that are, 1 and the number itself. What is the HCF of the Smallest Prime Number and the Smallest Composite Number? Twin prime numbers are prime numbers with exactly one composite number in between them. So, it has 3 and 29 also as factors along with 1 and 87. Here, the prime factorization of 87 is 3 × 29. Is 87 a Prime Number?Ī number is called prime if it does not have any factors except 1 and itself. Co-prime numbers can be prime numbers or composite numbers. For example, 5 and 9 are co-prime numbers. Co-prime numbers are the numbers whose Highest Common Factor (HCF) is 1. For example, 2, 3, 5, and 7 are prime numbers. What is the Difference Between a Prime Number and a Co-Prime Number?Ī prime number is a number that has only two factors, that is, 1 and the number itself.
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List down all the numbers from 2 to 100 and start selecting numbers and cancel all the multiples of that number following the suitable rules. We can apply the Sieve of Eratosthenes technique to quickly find the prime numbers 1 to 100. What is the Shortcut to find Prime numbers Up to 100? With this method, we can easily find out prime numbers up to 100. Through this technique, we select the first number from the list of natural numbers from 2 to 100, and then we cancel all the multiples of that number. It is an ancient method for finding all the prime numbers up to any given limit. We can find prime numbers in mathematics by using an ancient technique that is the 'Sieve of Eratosthenes'.
#PRIME NUMBERS LIST HOW TO#
The following steps show how to find all the prime numbers up to 100 by Eratosthenes' method. We can find prime numbers in mathematics by using an ancient technique that is the sieve of Eratosthenes.