1. The sum of exponents of prime factors in the
prime-factorisation of 196 is:
(a) 3 (b) 4
(c) 5 (d) 6 [CBSE 2020]
Q. If two positive integers p and q can be
expressed as p = ab2 and q = a3b where a and
b are prime numbers, then the LCM (p, q) is:
(a) ab (b) a2b2
(c) a3b2 (d) a3b3
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