A pair of prime numbers that can be expressed in the form K{p, (p + 6)} is deﬁned as a pair of “sexy primes.” A “sexy triplet” is a group of three primes that can be expressed in the form {p, (p + 6), (p + 12)}. All of the following prime numbers are the middle term of a sexy triplet EXCEPT  Choose one:
A) 11
B) 13
C) 17
D) 19
E) 23
definetly a sitter.plug in the values for middle term and calculate.We can see clearly that K for 19 , 19+6 gives 25 which is not a prime   therefore correct answer 19
<result>D</result>
A pair of prime numbers that can be expressed in the form K{p, (p + 6)} is deﬁned as a pair of “sexy primes.” A “sexy triplet” is a group of three primes that can be expressed in the form {p, (p + 6), (p + 12)}. All of the following prime numbers are the middle term of a sexy triplet EXCEPT