what are the twin numbers between 1 and 100

Answer :

 Two prime number are known as twin primes of there is only one composite number between them.

So,

Twin prime numbers in between 1 and 100 :

( 3 ,  5 ) ,  ( 5 ,  7 ) ,  ( 11 ,  13 ) ,  ( 17 ,  19 ) ,  ( 29 ,  31 ) ,  ( 41 ,  43 ) ,  ( 59 ,  61 ) ,  ( 71 ,  73 )

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