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The greatest common factor or the highest common factor is the highest number that divides exactly into two or more numbers. 28: 1, 2, 4, 7, 14, 28 35: 1, 5, 7, 35 The GCF of 28 and 35 is 7.
Greatest common factor= 7 The greatest common factor is the factor that all these numbers have in common. It helps to make a list of all the number's factors. 28- 2, 2, 7 35- 5, 7 42- 2, 3, 7 All of these numbers have 7 as a factor, therfore 7 is the greatest common factor
The greatest common factor (or greatest common divisor) of 35 and 84 is 7.
The greatest common factor of 10 and 35 is 5.
The greatest common factor of 35 and 63 is 7.