asked 94.6k views
4 votes
Put a check by the three numbers that are prime numbers.
1
7
15
21

2 Answers

2 votes
seven is the only prime number here
4 votes

Answer:

1

7 ✔️

15

21

Only 7 is a prime number in this question.

answered
User Macarthy
by
8.2k points

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