1.

Observe the twin primes in the table. (3, 5) (5, 7) (11, 13) (17, 19) P Q R S Which of the given twin primes are present in the prime factorisation of 2145?

A.  Q and R                              
B.  P and S
C.         P and Q              
D.         P and R
Answer» E.


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