Is 2223 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 2223 is composite or not first we have to find its factors.
Contents
Factors of 2223:
- If we have taken numbers from 1, 2, 3…for checking factors of 2223, we found that 2223 has factors 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223. Hence, we must say that 2223 is a composite number.
- Thus, 2223 is the composite number.
- If we multiply 2223 by 1, 2, 3 then we get the multiples of 2223 which are 2223, 4446 and so on.
2223 is a Composite number or Prime number
About the number 2223:
- 2223 has more than two factors which are 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223 and hence it is the composite number.
- 2223 is the odd composite number and it is not the perfect square also.
- If we divide 2223 by 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223 then we get remainder as zero. Hence, 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223 are the factors of 2223
Note:
- 2223 is not the perfect square.
- Factors of 2223: 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223
- Prime factors of 2223: 3, 13, 19
Conclusion:
- 2223 is the composite number which has factors 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223.
- And hence, 2223 is not the prime number.
Multiple Choice Questions:
1) 2223 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 2223 are
a) 1
b) 3, 13, 19
c) 1 and 2223
d) 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223
Ans: b) 3, 13, 19
3) 2223 is the composite number because
a) It has factors 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741 and 2223
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