Factors, Multiples, Primes, LCM and HCF
Question 1 of 30
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Find the greatest integer \(k\) such that \(\dfrac{84}{k}\) and \(\dfrac{126}{k}\) are integers and have HCF \(=1\).
Select one option.
A
21
B
42
C
14
D
7
E
6
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