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Manipal MET2018MathematicsBinomial Theorem

The least positive remainder when 123 125 127 is divided by 124 is

Options

  1. A4
  2. B120
  3. C121
  4. D130

Correct answer

C. 121

Step-by-step solution

aligned & Since, 123=-1( 124) & 125=1( modl 24) & 127=3( modl 24) & 123 125 127=(-1)(1)(3) nd (124) & =-3 (124)=121 (124) aligned

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