The LCM of 100 and 101 is
(a) 10100
(b) 1001
(c) 10101
(d) None of these
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Solution
100 = 1 × 2 × 2 × 5 × 5
101 = 1 × 101
Since, 100 is a composite number and 101 is a prime number.
Thus, their LCM = 100 × 101 = 10100
Hence, the correct answer is option (a).