When the number (12345678910111213 \dots 99100) is divided by 16, what will be the remainder?

  1. A. 15
  2. B. 12
  3. C. 4
  4. D. 3

Correct Answer: B. 12

Explanation

A number is divisible by 16 if its last 4 digits are divisible by 16. The last 4 digits are 9100. Dividing 9100 by 16 yields a remainder of 12.

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