July 17, 2015
GMAT prime numbers are the building blocks for so many questions. It is a basic concept, but make sure you are very comfortable with prime numbers. A prime number is a positive number that is only divisible by 1 and itself. 1 is not a prime number and 2 is the only even prime number (this is important to remember for GMAT questions). Here is a list of some of the lower value prime numbers:
2 3 5 7 11 13 17 19 23 29 31 37
You should be able to recognize these very quickly, and...