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12 November, 18:27

Put a check by the three numbers that are prime numbers.

1

7

15

21

+2
Answers (2)
  1. 12 November, 18:54
    0
    1

    7 ✔️

    15

    21

    Only 7 is a prime number in this question.
  2. 12 November, 19:37
    0
    Seven is the only prime number here
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