Math Drills
Common Divisors and Greatest Common Divisor
A-3Calculation (Listing Common Divisors)
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What this worksheet covers
- Worksheet
- Common Divisors and Greatest Common Divisor
Questions writing out the divisors two numbers share, and questions finding the largest among them, stand side by side as Calculation. The Word Problems, which share out fruit or stationery of two kinds with nothing left over, call for the same operation.
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Some of the sharing questions ask for the number of people once one person is set aside. Papers add the 1 that is a perfectly good divisor, so a 1 left in the row of answers means the instruction to set someone aside went unread. In a bare question, 1 is a correct answer.
The row written out for a single number in Divisors and Multiples (Listing) is here brought together in twos to hunt for the overlap. Common Multiples and Least Common Multiple hunts for that overlap on the side of multiples.
- Listing Common Divisors10 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “Properties of Integers (Divisors and Multiples)”, shown with their answers.
(1)Write all the common divisors of 6 and 21. Answer □
Answer: 1, 3
(2)Write all the common divisors of 2 and 18. Answer □
Answer: 1, 2
(3)Write all the common divisors of 12 and 15. Answer □
Answer: 1, 3
(4)Write all the common divisors of 12 and 21. Answer □
Answer: 1, 3
(5)Write all the common divisors of 8 and 18. Answer □
Answer: 1, 2
(6)Write all the common divisors of 10 and 20. Answer □
Answer: 1, 2, 5, 10
(7)Write all the common divisors of 7 and 21. Answer □
Answer: 1, 7
(8)Write all the common divisors of 4 and 12. Answer □
Answer: 1, 2, 4
(9)Write all the common divisors of 30 and 40. Answer □
Answer: 1, 2, 5, 10
(10)Write all the common divisors of 9 and 18. Answer □
Answer: 1, 3, 9
What to do next
More worksheets in this unit
Divisors and Multiples (Listing)Divisors and Multiples (Listing) Calculation (Multiples)
Common Divisors and Greatest Common DivisorCommon Divisors and Greatest Common Divisor Calculation (Greatest Common Divisor)
Common Divisors and Greatest Common DivisorCommon Divisors and Greatest Common Divisor Word Problems (Common Divisors)
Common Divisors and Greatest Common DivisorCommon Divisors and Greatest Common Divisor Word Problems (Using the GCD)
Common Multiples and Least Common MultipleCommon Multiples and Least Common Multiple Calculation (Listing Common Multiples)
Common Multiples and Least Common MultipleCommon Multiples and Least Common Multiple Calculation (Least Common Multiple)
Common Multiples and Least Common MultipleCommon Multiples and Least Common Multiple Word Problems (Using the LCM)
Properties of Integers (Divisors and Multiples) ReviewProperties of Integers (Divisors and Multiples) Review Calculation
Properties of Integers (Divisors and Multiples) ReviewProperties of Integers (Divisors and Multiples) Review Word Problems
