CSE: Numerical Reasoning - Greatest Common Factor

Monday, April 10, 2023

As an indispensable aspect of various mathematical applications, understanding the Greatest Common Factor is crucial for achieving success in the quantitative portion of the Civil Service Examination. These 10 practice questions are designed to help you conquer this essential mathematical concept, boosting your chances of acing the exam and propelling your career in the government sector.


Director: Choose the letter of the correct answer.

What is the greatest common factor of 72 and 120?
a. 12
b. 24
c. 36
d. 48


2. What is the greatest common factor of 9 and 15?
a. 3
b. 5
c. 6
d. 9


What is the greatest common factor of 27 and 45?
a. 9
b. 15
c. 18
d. 21


What is the greatest common factor of 20 and 25?
a. 5
b. 10
c. 15
d. 20


What is the greatest common factor of 16 and 24?
a. 4
b. 8
c. 12
d. 16


What is the greatest common factor of 18 and 24?
a. 6
b. 8
c. 12
d. 18


What is the greatest common factor of 35 and 70?
a. 5
b. 7
c. 10
d. 35


What is the greatest common factor of 60 and 90?
a. 15
b. 30
c. 45
d. 60


What is the greatest common factor of 36 and 48?
a. 12
b. 18
c. 24
d. 36


What is the greatest common factor of 42 and 56?
a. 7
b. 14
c. 21
d. 28