A) 5
B) 5
C) 1
D) 2
Correct Answer: D
Solution :
\[({{n}^{13}}-n)\] is divisible by 13 for all n E whole numbers. \[({{5}^{2n}}-1)\] is divisible by +3 for even n. The smallest even number is 2. When n = 2, then the expression is divisible by 169.
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