Which of the following is true about a **prime number**?

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**Solution:**

1. A **prime number** is defined as a positive integer greater than 1 that has exactly two distinct positive divisors: 1 and the number itself.

2. Option (a) states that there are more than two divisors, which is incorrect because prime numbers have exactly two divisors.

3. Option (b) correctly states that a prime number is divisible only by itself and 1.

4. Option (c) is incorrect because every number has at least one divisor; prime numbers have exactly two.

5. Option (d) is incorrect because prime numbers are positive integers greater than 1.

**Answer:** Divisible by itself and 1 only.

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