**What are Prime and Composite Numbers?**

**Answer:**

A number which has only two factors is called a **Prime Number** and a number having more
than two factors is called a **Composite Number**.

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For example,

2 has only two factors 1 and 2, so 2 is a prime number.

3 has only two factors 1 and 3, so 3 is a prime number.

5 has only two factors 1 and 5, so 5 is a prime number.

etc. But,

4 has three factors 1, 2, and 4, so 4 is a composite number.

6 has four factors 1, 2, 3, and 6, so 6 is a composite number.

8 has four factors 1, 2, 4, and 8, so 8 is a composite number.

etc.

**What are the differences between prime vs composite numbers?**

**Answer:**

Prime VS Composite Numbers

**Is 0 a prime or composite number?**

**Answer:**

0 is neither a prime nor a composite number.

### Is 1 a prime or composite number?

**Answer:**

1 is neither a prime nor a composite number.

**Is 2 prime or composite number?**

**Answer:**

2 is a prime number.

**Is 3 a prime or composite number?**

**Answer:**

3 is a prime number.

**Is 4 a prime or composite number?**

**Answer:**

4 is a composite number.

**Is 5 a prime or composite number?**

**Answer:**

5 is a prime number.

**Is 6 a prime or composite number?**

**Answer:**

6 is a composite number.

**Is 7 a prime or composite number?**

**Answer:**

7 is a prime number.

**Is 8 a prime or composite number?**

**Answer:**

8 is a composite number.

**Is 9 prime or composite?**

**Answer:**

9 is a composite number.

**Is 12 prime or composite?**

**Answer:**

12 is a composite number.

**Is 13 prime or composite?**

**Answer:**

13 is a prime number.

**Is 15 prime or composite?**

**Answer:**

15 is a composite number.

**Is 17 prime or composite?**

**Answer:**

17 is a prime number.

**Is 19 prime or composite?**

**Answer:**

19 is a prime number.

**Is 21 prime or composite?**

**Answer:**

21 is a composite number.

**Is 23 prime or composite?**

**Answer:**

23 is a prime number.

**Is 29 prime or composite?**

**Answer:**

29 is a prime number.

**Is 31 prime or composite?**

**Answer:**

31 is a prime number.

**Is 49 a prime or composite number?**

**Answer:**

49 is a composite number.

**Is 51 prime or composite?**

**Answer:**

51 is a composite number.

**Is 91 a prime or composite number?**

**Answer:**

91 is a composite number.

**Which numbers are neither prime nor composite?**

**Answer:**

0 and 1 are neither prime nor composite numbers.

**Why 1 is neither prime nor composite?**

**Answer:**

The definition of a prime number says that “A number which has
only two factors is called a prime number” and, the definition of composite
number says that “A number which has more than two factors is called a
composite number.” but 1 has only one factor that is 1 itself, so 1 is neither a prime
nor a composite number.

If you have any questions regarding the **Prime or Composite Numbers**, you can
ask here, in the comment section below.

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