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"Reflection of an Integer"
I haven't encountered this before. I'm not sure how to approach it. At this point it's not even clear to me why the result should only be divisible by one number in *every* case.
The reflection of a positive integer is obtained by reversing its
digits. For example, the reflection of 321 would be 123. The
difference between a 5 digit integer and its reflection must be
divisible by which of the following?
A. 2
B. 4
C. 5
D. 6
E. 9
I haven't encountered this before. I'm not sure how to approach it. At this point it's not even clear to me why the result should only be divisible by one number in *every* case.
The reflection of a positive integer is obtained by reversing its
digits. For example, the reflection of 321 would be 123. The
difference between a 5 digit integer and its reflection must be
divisible by which of the following?
A. 2
B. 4
C. 5
D. 6
E. 9