Free Practice Question
PS · Problem Solving
sub-505
Divisibility/Multiples/Factors
Given that 6 is the greatest common divisor of two positive integers a and b, what is the greatest common divisor of 4a and 4b?
Answer Choices
Correct answer marked belowA
4
B
6
C
8
D
12
24
Correct
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Explanation
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Official Explanation
Official
Since 6 is the greatest common divisor of the positive integers a and b, it means that 6 is a common factor of both a and b, and there are no other common factors greater than 6. To find the greatest common divisor…
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Comments
2
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S
ShubhankarNov 24, 2024
Can someone explain it other way?
I
IFeb 12, 2024
Thankss
What this question tests
What it tests
Your understanding of divisibility rules, least common multiples, and greatest common factors.
Common trap
Forgetting that 1 is not prime and that every integer divides 0.
Details
Difficulty
sub-505
Type
PS
Category