Answer:
7, 19, and 29 are all prime numbers.
Step-by-step explanation:
Prime numbers are all numbers greater than 1 and have factors of 1 and itself.
7 is a prime number
Factors: 1, 7
9 is not a prime number:
Factors: 1, 3, 9
12 is not a prime number:
1, 2, 3, 4, 6, 12
19 is a prime number:
1, 19
22 is not a prime number.
1, 2, 11, 22
29 is a prime number.
Factors: 1, 29
Hope this helps!
