Question

put a check by all the prime numbers.
3
4
11
22
27
28
none of the above

Explanation:

Step1: Define Prime Number

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

Step2: Check 3

3 > 1. Divisors of 3: 1, 3. So 3 is prime. Check its box.

Step3: Check 4

4 > 1. Divisors of 4: 1, 2, 4. Not prime (has divisor 2). Don't check.

Step4: Check 11

11 > 1. Divisors of 11: 1, 11. So 11 is prime. Check its box.

Step5: Check 22

22 > 1. Divisors of 22: 1, 2, 11, 22. Not prime (has divisors 2, 11). Don't check.

Step6: Check 27

27 > 1. Divisors of 27: 1, 3, 9, 27. Not prime (has divisors 3, 9). Don't check.

Step7: Check 28

28 > 1. Divisors of 28: 1, 2, 4, 7, 14, 28. Not prime (has multiple divisors). Don't check.

Answer:

• $\square$ 3 (checked)
• $\square$ 4 (not checked)
• $\square$ 11 (checked)
• $\square$ 22 (not checked)
• $\square$ 27 (not checked)
• $\square$ 28 (not checked)
• $\square$ None of the above (not checked)

(Note: In the actual interface, you would click the checkboxes next to 3 and 11.)