What is the total number of prime numbers less than 65? Choose the correct choice from the following answers.
A) 17
B) 18
C) 19
D) 20
E) 21
Solution   Prime numbers less than 65 are	=18.   2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61   Their number is 18.   Answer 18
<result>B</result>
What is the total number of prime numbers less than 65?