Question

Which of these numbers is prime?
Choose 1 answer:
Choose 1 answer:
(Choice A)
\[27\]
A
\[27\]
(Choice B, Checked)
\[54\]
B
\[54\]
(Choice C)
\[69\]
C
\[69\]
(Choice D)
\[95\]
D
\[95\]
(Choice E)
\[97\]
E
\[97\]

Answer 1

To determine which of the given numbers is prime, we need to check whether each number has exactly two distinct positive divisors: 1 and itself.

1. **27**: The divisors are 1, 3, 9, and 27. (Not prime)
2. **54**: The divisors are 1, 2, 3, 6, 9, 18, and 54. (Not prime)
3. **69**: The divisors are 1, 3, 23, and 69. (Not prime)
4. **95**: The divisors are 1, 5, 19, and 95. (Not prime)
5. **97**: The only divisors are 1 and 97. (Prime)

The only prime number among the choices is **97** (Choice E).