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KCET2007MathematicsBinomial Theorem

The remainder obtained when 5¹²⁴ is divided by 124 is

Options

  1. A5
  2. B0
  3. C2
  4. D1

Correct answer

A. 5

Step-by-step solution

We have, 5¹²⁴= (5³ )⁴¹ 5 Now, 5³=1( 124) (5³ )⁴¹=1( 124) (5³ )⁴¹ 5=1 5( 124) 5¹²⁴=5( 124)

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