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Q: A six-digit number formed by repeating a three-digit number is always divisible by?
  • A. 1001
  • B. 111
  • C. 19
  • D. 101
Correct Answer: Option A - When a six-digit number is formed by repeating a 3-digit number, like ABC is written ABC ABC then it is always divisible by 7, 11, 13 and LCM of 7, 11, 13 is 1001.
A. When a six-digit number is formed by repeating a 3-digit number, like ABC is written ABC ABC then it is always divisible by 7, 11, 13 and LCM of 7, 11, 13 is 1001.

Explanations:

When a six-digit number is formed by repeating a 3-digit number, like ABC is written ABC ABC then it is always divisible by 7, 11, 13 and LCM of 7, 11, 13 is 1001.