The Greatest Common Factor of 14, 35, 42 is 7.
Since 20 is a factor of 40, it is automatically the GCF.
The LCM and GCF of 40 and 20 are 40 and 20 respectively.
The GCF of 7, 20, and 35 is 1.
The GCF of these numbers is 40.
The Greatest Common Factor of 14, 35, 42 is 7.
GCF(20, 25, 35, 40) = 5 The GCF of any set of numbers is also a factor of the difference of any pair of them. So the GCF must be a factor of 5 (= 25-20). This narrows down the options quite considerably!
Since 20 is a factor of 40, it is automatically the GCF of this problem.
The GCF is 5.
The GCF is 5.
The GCF is 20.
The GCF is 20.
The GCF is 20.
It is 5 because: 35-1,5,7,35 20-1,2,4,5,10,20 & 15-1,3,5,15
Since 20 is a factor of 40, it is automatically the GCF.
The LCM and GCF of 40 and 20 are 40 and 20 respectively.
The GCF is 1.