The Least Common Multiple & Greatest Common Factor Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. What is the short way to write the greatest common factor?

Question 2 2. Find the LCM of 13 and 15.

Question 3 3. Which of the following is NOT a prime number?

Question 4 4. A factor is defined as the different numbers that can be multiplied together to arrive at the original number. Which choice below is the complete list of factors of 30?

Question 5 5. What is the prime factorization of 4050?

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Question 6 6. Find the LCM of 5 and 20.

Question 7 7. Find the GCF of 15 and 35.

Question 8 8. Find the GCF of 12 and 25.

Question 9 9. Which of the following is NOT a way to begin the factor tree for 1230?

Question 10 10. What is the shorthand way of writing the least common multiple?

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Question 11 11. Find the GCF of 9 and 45.

Question 12 12. Which sequence of numbers below is a list of multiples?

Question 13 13. What is the prime factorization of 32?

Question 14 14. For which of the number pairs below could you NOT use the shortcut of simply multiplying the two numbers together to find the LCM?

Question 15 15. What is the prime factorization of 420?

The Least Common Multiple & Greatest Common Factor Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Ohio Assessments for Educators - Elementary Education (018/019): Practice & Study Guide  /  Social Science Courses
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