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Q: Find the Odd one out of the given series 6, 15, 35, 77, 165, 221

  • 1
    221
  • 2
    165
  • 3
    35
  • 4
    77
  • Show Answer
  • Workspace

Answer : 2. "165"
Explanation :

Answer: B) 165 Explanation: The terms of the series are products of two consecutive prime numbers i.e. (2 x 3), (3 x 5), (5 x 7), (7 x 11),..... So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.

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