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  • 08-10-2015
  • Mathematics
Answered

What is the greatest common factor of 9 21 60?

Verified Answer :

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  • 08-10-2015

The greatest common factor (GCF) of 9, 21 and 60 is: 3

Factors of 9: 1, 3, 9
Factors of 21: 1, 3, 7
Factors of 60: 1, 2, 3, 4, 5, 6

The common factors between the three numbers are 1 and 3, but since 3 is the highest number, it is considered the GCF.

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