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AP EAMCET2016MathematicsPermutation and Combination

The greatest positive integer which divides (n+16)(n+17)(n+18)(n+19) , for all positive integers n , is

Options

  1. A6
  2. B24
  3. C28
  4. D20

Correct answer

B. 24

Step-by-step solution

Given, (n+16)(n+17)(n+18)(n+19) As we can observe that these numbers are th product of four consecutive natural numbers. This number gets divided by 4 !=24 .

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