Multiple choice

A six-digit number is formed by repeating a three-digit number, e.g. 256256, 678678, etc. Any number of this form is always exactly divisible by

  1. 7 only

  2. 11 only

  3. 13 only

  4. 1001 only

  5. 101 only
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Such a number can be written as follows: P * 103 + P = P (103 + 1) = P (1001) ...........where P is the block of three digits that repeat Therefore, option (4) is the correct option.

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