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**Prime numbers**: The numbers whose factors are 1 and also the number itself is referred to as Prime numbers.

**Example :**2,3,5,7,11,13,…

**2 is the smallest also prime number and 3 is the the smallest odd element number.The prime numbers as much as 100 are :2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,73, 79, 83, 89, 97Composite Number**: The number which has at least one factor other than 1 and the number itself.

**Example**: 4,6,8,9,12,…

**Note : 1 is neither prime nor composite.**

**Co-prime Numbers**: two numbers that execute not have a usual factor various other than 1.

**The an initial 100 composite number are4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33,34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58,60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85,86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104, 105, 106, 108,110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,126, 128, 129.Example :**35 and 39

**35 = 7 x 5 x 139 = 3 x 13 x 1Both 35 and 39 room composite numbers,the only factor common in between them is 1.∴ 35 and also 39 room co-prime numbers.Some more examples are**: 1) 2,3 ; 2) 3,4 3) 5,6 4) 8,13, and also so on.

**Twin Primes**: 2 prime number are well-known as pair primes of there is only one composite number between them.

**The twin primes between 1 come 100 are3-5, 5-7, 11-13, 17-19, 29-31, 41-43, 59-61, 71-73Factors and Multiples**

**• Prime-Composite numbers• Divisibility rules• element Factorization• H.C.F or G.C.F• L.C.M• application on LCMPrime and also composite number to Factors and MultiplesNumber SystemHome Page**

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