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
User Michael McParland
by
5.3k points
4 votes

Answer:

1

7 ✔️

15

21

Only 7 is a prime number in this question.

User Macarthy
by
5.1k points