SAT Math Question of the Day

Math Category: Prime Numbers:

Q: How many prime numbers are there between 11 and 23 exclusive?

  1. 2
  2. 3
  3. 4
  4. 5
  5. 6

UNANSWERED.

The correct answer is B.

A: The answer is 3.

The prime numbers between 11 and 23 exclusive are 13, 17, and 19. Remember exclusive means to exclude the numbers at both ends of the range.