Q3 of 40 Page 1

The LCM of smallest two-digit composite number and the smallest composite number is

The smallest two-digit number is 10; it is also a composite number. Therefore, smallest 2 digit composite number is 10 and smallest composite number is 4. LCM of 10 and 4 is 20 ( as 20 is the smallest number which is divisible by both 10 and 4 ).

Hence, option c is the correct answer.

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