The factors of 28 are: 1, 2, 4, 7, 14, 28
The factors of 70 are: 1, 2, 5, 7, 10, 14, 35, 70
The factors of 98 are: 1, 2, 7, 14, 49, 98
The common factors are: 1, 2, 7, 14
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The greatest common factor (GCF) is: 14
To find the HCH write down all the factors of each number. Hence# 70 ; 1,2,5,7,10,14, 35 & 70. 98 ; 1,2,7,7,14, 49 & 98 The factors common to both numbers are 2,7,14 Hence '14' is the HCF.
The GCF is 14.
The GCF is 14.
The GCF of 70 98 and 168 is 14. This gives you 5 7 and 12 respectively. You cannot get any more common factors that impact the end figure.