alleryStart learning →Find the highest common factor of 48 and 180 from their prime factors 2x2x2x2x3 and 2x2x3x3x5.
A6
B12
C24
D36
Answer & Solution
Correct answer: B. 12
The factors common to both are two 2s and one 3, so the HCF is 2 x 2 x 3 = 12.
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