Math

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Consider every whole number area from 2 square units to 30 square units. For which of these areas is there only one rectangle with whole number side lengths?

  • Math -

    When the area is represented by a prime number
    e.g. area = 11
    the sides can only be 1 by 11
    area = 12
    sides could be 1by12 or 2by6 or 3by4

    so which are the prime numbers from 2 to 30?
    btw, 2 is considered a prime number.

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