Lesson Worksheet: The Greatest Common Factor Mathematics • 6th Grade

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In this worksheet, we will practice finding the greatest common factor of two or more numbers by writing all the factors of these numbers.

Q1:

Find the greatest common factor of 26 and 14.

Q2:

Find the greatest common factor of 63 and 42.

Q3:

Find the greatest common factor of 9 and 14.

Q4:

Find the greatest common factor of 21 and 10.

Q5:

Can the greatest common factor of two numbers be 1?

  • AYes
  • BNo

Q6:

Find the GCF of 84 and 28.

Q7:

True of False: The greatest common factor of 40 and 30 is 17.

  • AFalse
  • BTrue

Q8:

True or False: The greatest common factor of 86 and 70 is 2.

  • ATrue
  • BFalse

Q9:

Find the common factors of 56 and 36 and state the GCF.

  • AThe common factors are 24and, and the GCF is 4.
  • BThe common factors are 1,2,4and, and the GCF is 4.
  • CThe common factors are 1,2,3,4,6,7,8,9,12,14,18,28,36,56and, and the GCF is 56.
  • DThe common factors are 1,2,4,8and, and the GCF is 8.

Q10:

What is the greatest common factor between the two numbers 51 and 53?

  • A2
  • B51
  • C53
  • D1

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