14 = 7 x 2
&
49 = 7 x 7
'7' is common to both numbers, so seven is the HCF ( Highest common factor).
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49 = 7 x 7, 21 = 7 x 3, 91 = 7 x 13. HCF is 7
Highest Common Factor is 7 : 7 x 5 = 35 ; 7 x 7 = 49
The Greatest Common Factor of 14, 43, 49 is 1.
The least common multiple is the smallest positive number that is a multiple of two or more numbers. 14: 14, 28, 42, 56, 70, 84, 98 49: 98 The least common multiple for 14 and 49 and is 98.
14