How many pairs (e, e+1) have one or more prime factors common, where e is an integer and 2 ≤ e ≤9 ?	Choose the correct answer.
A) 0  B) 1  C) 2  D) 3  E) 4
e and e+1 are consecutive integers.   Two consecutive integers are co-prime, which means that they don't share ANY common factor but 1. For example 20 and 21 are consecutive integers, thus only common factor they share is 1.   0nswer: 0.
<result>A</result>
How many pairs (e, e+1) have one or more prime factors common, where e is an integer and 2 ≤ e ≤9 ?