GCF and LCM Worksheets

Grade 6 Factoring Worksheets: GCF & LCM

These math worksheets cover factoring to prime numbers as well as determining the greatest common factor (GCF) or least common multiple (LCM) of two numbers. 

Prime Factors

 

 

Example

Find prime factors (#'s < 100)
   32: 2x2x2x2x2
Find prime factors (#'s < 500)
   214:  2 x 107

Greatest common factors

   
Find the GCF of 2 numbers
   GCF of 21, 35 is 7
Find the GCF of 2 numbers under 100    GCF of 12, 100 is 4
Find the GCF of 3 numbers
  GCF of 6, 22, 84 is 3

Least common multiples

   
Find the LCM of 2 numbers
   LCM of 3, 4 is 12
Find the LCM of 2 numbers under 50    LCM of 4, 34 is 68
Find the LCM of 3 numbers
  LCM of 4, 7, 14 is 28

Grade 6 Factoring Worksheet

Sample Grade 6 Factoring Worksheet

More factoring & prime factors worksheets

Explore all of our factoring worksheets, from factoring numbers under 50 to prime factor trees, GCFs and LCMs.

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