__ ____Is 2123 is a composite number or not ?__

__Is 2123 is a composite number or not ?__

- As we already know that, the number having factors 1 and the number itself is the prime number.
- And numbers having more than these two factors are the composite numbers.
- To check whether the number 2123 is composite or not first we have to find its factors.

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**Factors of 2123:**

- If we have taken numbers from 1, 2, 3…for checking factors of 2123, we found that 2123 has factors 1, 11, 193 and 2123. Hence, we must say that 2123 is a composite number.
- Thus, 2123 is the composite number.
- If we multiply 2123 by 1, 2, 3 then we get the multiples of 2123 which are 2123, 4246 and so on.

** ****2123 is a ****Composite**** number or Prime number **

__About the number 2123:__

- 2123 has more than two factors which are 1, 11, 193 and 2123 and hence it is the composite number.
- 2123 is the odd composite number and it is not the perfect square also.
- If we divide 2123 by 1, 11, 193 and 2123 then we get remainder as zero. Hence, 1, 11, 193 and 2123 are the factors of 2123

__Note:__

__Note:__

- 2123 is not the perfect square.
- Factors of 2123: 1, 11, 193 and 2123
- Prime factors of 2123: 11, 193

**Conclusion:**

- 2123 is the composite number which has factors 1, 11, 193 and 2123.
- And hence, 2123 is not the prime number.

**Multiple Choice Questions:**

**1) 2123 is a**

a) odd number

b) Prime number

c) Composite number

d) Both a and c

**Ans: d) both a and c**

**2) The prime factors of a composite number 2123 are**

a) 1

b) 11, 193

c) 1 and 2123

d) 1, 11, 193 and 2123

**Ans: b) 11, 193**

**3) 2123 is the composite number because**

a) It has factors 1, 11, 193 and 2123

b) It has more than two factors

c) It is not divisible by 2

d) Both a and b

**Ans: d) both a and b**