Lesson: Challenging Arithmetic - 09t01
Multiple of Numbers continued
[Page 9 of 30]
In-Format Factor And Multiple Questions
Let's see how you can put your knowledge of factors and multiples to good use on test day.
Video - LCM by Ladder Method
1. If 
is an integer, which of the following CANNOT be n?
Hint
The question could be re-phrased as: Which of the answer choices is not a factor of 4,620? So unless you enjoy long division and would prefer to divide 4,620 by all the answer choices, the easiest way to answer this question is by prime factorization:
The prime factors of Choices (1), (2), (4) and (5) are all shared by 4,620. Choice (3) is not a factor of 4,620. 40 has three 2's in its prime factors, while 4,620 has only two.
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Test Prep Lessons With Video Lessons and Explained MCQ
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Each exam has different types of math sections. The sections may be called Mathematics or Arithmetic Problem Solving. In the math section of the exam, you will be tested on basic math skills such as addition, subtraction, multiplication, and division. Some sections may include fractions, decimals, graphs and percentages. All questions will be a multiple choice format. The amount of math questions on each test will vary.