Arithmetic Reasoning

Which is a prime number?

  1. 102
  2. 103
  3. 105
  4. 111

 

As an ASVAB tutor, one of the topics I review for Mathematics Knowledge is the topic of prime and composite numbers.  Do you know what prime numbers are?  Do you know what composite numbers are?  Too many people confuse the terms prime and composite with odd and even numbers.  They have very different meanings.  A prime number is a number that can only be divided by 1 and itself.  A composite number is a number that has at least one other factor aside from 1 and itself.