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Miscellaneous·2024·Easy

What is the sum of the largest and the smallest 4-digit numbers made by using single digit prime numbers(without repetition)?

What is the sum of the largest and the smallest 4-digit numbers made by using single digit prime numbers(without repetition)?

Options

  1. a.

    7887

  2. b.

    7997

  3. c.

    8998

  4. d.

    9889

    Correct answer

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