The greatest common factor can be found by factorizing all numbers and find the common factors. The product of these factors is the greatest common factor.
128 = 2*2*2*2*2*2*2
1000 = 2*2*2*5*5*5
The common factors are:
2*2*2
Which means the greatest common factor is:
2*2*2 = 8
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To get the Greates Common Factor (GCF) of 60 and 480 we need to factor each value first and then we choose all the copies of factors and multiply them:
36400 56*650 = 36400 65*560 = 36400
The GCF (Greatest Common Factor of 12, 14, and 20 is 212: 2 2 314: 2 720: 2 2 5
The GCF and LCM of 360 and 924 are 12 and 27720, respectively. 360 = 2 x 2 x 2 x 3 x 3 x 5, 924 = 2 x 2 x 3 x 7 x 11 HCF = 2 x 2 x 3, ie 12 LCM = 360 x 77, ie 27720
720 360,2 180,2,2 90,2,2,2 45,2,2,2,2 15,3,2,2,2,2 5,3,3,2,2,2,2