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Name
Grade
School

Date
Questions20
Score

1

Find the GCF if the LCM of 130 and 30 is 390.

2

Find the GCF if the LCM of 30 and 100 is 300.

3

Find the GCF if the LCM of 9 and 3 is 9.

4

Find the GCF if the LCM of 8 and 2 is 8.

5

Find the GCF if the LCM of 32 and 4 is 32.

6

Find the GCF if the LCM of 40 and 8 is 40.

7

Find the GCF if the LCM of 105 and 28 is 420.

8

Find the GCF if the LCM of 120 and 80 is 240.

9

Find the GCF if the LCM of 12 and 24 is 24.

10

Find the GCF if the LCM of 7 and 10 is 70.

11

Find the GCF if the LCM of 96 and 16 is 96.

12

Find the GCF if the LCM of 5 and 2 is 10.

13

Find the GCF if the LCM of 44 and 28 is 308.

14

Find the GCF if the LCM of 9 and 7 is 63.

15

Find the GCF if the LCM of 40 and 24 is 120.

16

Find the GCF if the LCM of 22 and 12 is 132.

17

Find the GCF if the LCM of 8 and 4 is 8.

18

Find the GCF if the LCM of 39 and 12 is 156.

19

Find the GCF if the LCM of 6 and 9 is 18.

20

Find the GCF if the LCM of 108 and 63 is 756.

Answers Key

1

Find the GCF if the LCM of 130 and 30 is 390.

10

LCM x GCF = Product of Numbers

GCF = 10

GCF =

Product of NumbersLCM =

130 x 30390 =

3900390GCF = 10

2

Find the GCF if the LCM of 30 and 100 is 300.

10

LCM x GCF = Product of Numbers

GCF = 10

GCF =

Product of NumbersLCM =

30 x 100300 =

3000300GCF = 10

3

Find the GCF if the LCM of 9 and 3 is 9.

3

LCM x GCF = Product of Numbers

GCF = 3

GCF =

Product of NumbersLCM =

9 x 39 =

279GCF = 3

4

Find the GCF if the LCM of 8 and 2 is 8.

2

LCM x GCF = Product of Numbers

GCF = 2

GCF =

Product of NumbersLCM =

8 x 28 =

168GCF = 2

5

Find the GCF if the LCM of 32 and 4 is 32.

4

LCM x GCF = Product of Numbers

GCF = 4

GCF =

Product of NumbersLCM =

32 x 432 =

12832GCF = 4

6

Find the GCF if the LCM of 40 and 8 is 40.

8

LCM x GCF = Product of Numbers

GCF = 8

GCF =

Product of NumbersLCM =

40 x 840 =

32040GCF = 8

7

Find the GCF if the LCM of 105 and 28 is 420.

7

LCM x GCF = Product of Numbers

GCF = 7

GCF =

Product of NumbersLCM =

105 x 28420 =

2940420GCF = 7

8

Find the GCF if the LCM of 120 and 80 is 240.

40

LCM x GCF = Product of Numbers

GCF = 40

GCF =

Product of NumbersLCM =

120 x 80240 =

9600240GCF = 40

9

Find the GCF if the LCM of 12 and 24 is 24.

12

LCM x GCF = Product of Numbers

GCF = 12

GCF =

Product of NumbersLCM =

12 x 2424 =

28824GCF = 12

10

Find the GCF if the LCM of 7 and 10 is 70.

1

LCM x GCF = Product of Numbers

GCF = 1

GCF =

Product of NumbersLCM =

7 x 1070 =

7070GCF = 1

11

Find the GCF if the LCM of 96 and 16 is 96.

16

LCM x GCF = Product of Numbers

GCF = 16

GCF =

Product of NumbersLCM =

96 x 1696 =

153696GCF = 16

12

Find the GCF if the LCM of 5 and 2 is 10.

1

LCM x GCF = Product of Numbers

GCF = 1

GCF =

Product of NumbersLCM =

5 x 210 =

1010GCF = 1

13

Find the GCF if the LCM of 44 and 28 is 308.

4

LCM x GCF = Product of Numbers

GCF = 4

GCF =

Product of NumbersLCM =

44 x 28308 =

1232308GCF = 4

14

Find the GCF if the LCM of 9 and 7 is 63.

1

LCM x GCF = Product of Numbers

GCF = 1

GCF =

Product of NumbersLCM =

9 x 763 =

6363GCF = 1

15

Find the GCF if the LCM of 40 and 24 is 120.

8

LCM x GCF = Product of Numbers

GCF = 8

GCF =

Product of NumbersLCM =

40 x 24120 =

960120GCF = 8

16

Find the GCF if the LCM of 22 and 12 is 132.

2

LCM x GCF = Product of Numbers

GCF = 2

GCF =

Product of NumbersLCM =

22 x 12132 =

264132GCF = 2

17

Find the GCF if the LCM of 8 and 4 is 8.

4

LCM x GCF = Product of Numbers

GCF = 4

GCF =

Product of NumbersLCM =

8 x 48 =

328GCF = 4

18

Find the GCF if the LCM of 39 and 12 is 156.

3

LCM x GCF = Product of Numbers

GCF = 3

GCF =

Product of NumbersLCM =

39 x 12156 =

468156GCF = 3

19

Find the GCF if the LCM of 6 and 9 is 18.

3

LCM x GCF = Product of Numbers

GCF = 3

GCF =

Product of NumbersLCM =

6 x 918 =

5418GCF = 3

20

Find the GCF if the LCM of 108 and 63 is 756.

9

LCM x GCF = Product of Numbers

GCF = 9

GCF =

Product of NumbersLCM =

108 x 63756 =

6804756GCF = 9

Find GCF from LCM of numbers worksheet with answers to practice & learn 6th grade math problems on greatest common factor is available online for free in printable & downloadable (pdf & image) format. Tap on PRINT, PDF or IMAGE button to print or download this grade-6 worksheet for practice how to find HCF from LCM of given two numbers.

In this sixth grade math worksheet, students are required to find what is the greatest or highest common factor from LCM of given two numbers. Divide the product of numbers by LCM provides the GCF of those numbers.

Teachers, parents or students can check or validate the solved math workbook of 6th grade math questions on finding the GCF from LCM of given two numbers by using the corresponding answers key which comprises the step by step work for each problem in the worksheet.

Students, teachers or parents can generate unlimited set of grade-6 math questions & answers by using this "**NEW WORKSHEET**" button to prepare exam, assignments, classwork or homework problems, or step by step work on finding GCF from the least common multiple of given two numbers.

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