Find the HCF of the following by prime-factorisation and by division method.
a. 64 , 96 b. 30 , 40 , 52
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Step-by-step explanation:
☞64 = 2 x 2 x 2 x 2 x 2 x 2
96 = 2 x 2 x 2 x 2 x 2 x 3
Therefore HCF = 2 x 2 x 2 x 2 x 2
= 32
☞ 30 = 2 x 3 x 5
40 = 2 x 2 x 2 x 5
52 = 2 x 2 x 13
Therefore HCF = 2
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