Highest Common Factor is 7 : 7 x 5 = 35 ; 7 x 7 = 49
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It is 35
49 = 7 x 7, 21 = 7 x 3, 91 = 7 x 13. HCF is 7
14 = 7 x 2 & 49 = 7 x 7 '7' is common to both numbers, so seven is the HCF ( Highest common factor).
It is: 1225
Factors of 35 are: 1, 5, 7, 35Factors of 49 are: 1, 7, 49So, the highest common factor is 7.