Question

put a check by all the prime numbers.
2
3
13
16
23
25
none of the above

Explanation:

Step1: Recall prime number definition

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

Step2: Check each number

• For 2: Divisors are 1 and 2. Prime.
• For 3: Divisors are 1 and 3. Prime.
• For 13: Divisors are 1 and 13. Prime.
• For 16: Divisors include 2, 4, 8. Not prime.
• For 23: Divisors are 1 and 23. Prime.
• For 25: Divisors include 5. Not prime.

Answer:

The prime numbers are 2, 3, 13, 23. So the checkboxes for 2, 3, 13, and 23 should be marked.