math

Cruz and his friend, Penny need to determine what numbers are prime and what numbers are composite for homework assignment. Cruz says that the number 5 is a composite number because it has the factors 2 and 2.5. Explain what is wrong with his reasoning

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asked by sai
  1. Composite numbers are th products of integers other than one.

    2.5 is not an integer.

    Integers are whole numbers.

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    posted by drwls

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