MCQ
Which of the following is the highest value?
  • A
    129
  • B
    1011
  • C
    1110
  • D
    All option are right

Answer

  1. All option are right

Solution:

We know a prime x > 6 can be always written as 6k + 1 or 6k - 1, when k is an integer.

Option A ⟶ 889 = 6 × 148 + 1

Option B ⟶ 997 = 6 × 166 + 1

Option C ⟶ 899 = 6 × 133 + 1

Option D ⟶ 1147 = 6 × 191 + 1

$\therefore$ All the options are correct.

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