Question

2. If a =(22 x 39 x 54) and b = (2 x 32 x 5) then HCF(a, b) = ?
(a) 90
(b) 180
(c) 360
(d) 540
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Answer 1

option b)

180 is correct answer

hope it helps:)

Answer 2

Answer:

b 180 It is given that: a = 22 × 33 × 54 and b = 23 × 32 × 5 ∴HCF a b = Product of smallest power of each common prime factor in the numbers.  = 22 × 32 × 5  = 180