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11-20-2004, 01:43 PM
The "reflection" of a positive integer is obtained by reversing its digits. For example, 321 is the reflection of 123. The difference between a five-digit integer and its reflection must be divisible by which of the following?

2, 4, 5, 6, 9.


11-20-2004, 03:22 PM
ops, already posted in different post today... :o