Question 15
A seven-digit number, $2\,006\,\square\square\square$, is divisible by 3, by 4 and by 25. Find the possible values of the missing digits.
**Editorial note for this self-study exercise:** Enter all possible three-digit endings in increasing order, separated by semicolons, with no spaces in the answer; give the missing blocks, not the full seven-digit numbers.
**Editorial note for this self-study exercise:** Enter all possible three-digit endings in increasing order, separated by semicolons, with no spaces in the answer; give the missing blocks, not the full seven-digit numbers.