College Math CLEP Prep Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Unlock your mathematical potential and conquer the College Math CLEP exam with ease! Introducing our powerful College Math CLEP Prep Practice Exam, your ultimate tool for exam readiness.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the greatest common factor of 12 and 18?

The correct answer is: 6

The greatest common factor, also known as the greatest common divisor, is the largest number that divides evenly into two or more numbers. In other words, it is the largest number that is a common factor of both 12 and 18. In this case, the largest number that both 12 and 18 can be divided by is 6, making 6 the greatest common factor. Option A (3) and Option D (9) are incorrect because they are smaller than 6 and therefore cannot be the greatest common factor. Option C (8) is also incorrect because it does not evenly divide into either 12 or 18, making it an invalid factor for both numbers.