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UPSC Civil ServicesPrelims2025General Studies Paper II (CSAT)
Question
QQ35. What is the maximum value of n such that 7 × 343 × 385 × 1000 × 2401 × 77777 is divisible by 35^n ?
Options
- A 3
- B 4
- C 5
- D 7
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Correct Answer
B 4
Model Answer
Answer: option B, as per UPSC's final answer key (Series A).