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Greatest Common Factor (Standard 2.4)

How can you find the Greates Common Factor of two numbers or more?

REMEMBER ALL NUMBERS HAVE A FACTOR SOMETIMES THAT FACTOR CAN BE 1

When two numbers share a factor we refer to that number as a COMMON Factor.

You can use Prime Factorization to find the Common Factor.

40/5 = 8/2 = 4/2 = 2/2  = 5x2x2x2 =  GCF= 20  (Proof: 40/20=2)

60/5 = 12/2 = 6/2 = 3/3 = 5x2x2x3 = GCF =20  (Proof: 60/20=3)

 

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