Is 1081 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 1081 is composite or not first we have to find its factors.
Contents
Factors of 1081:
- If we have taken numbers from 1, 2, 3…for checking factors of 1081, we found that 1081 has factors 1, 23, 47 and 1081. Hence, we must say that 1081 is a composite number.
- Thus, 1081 is the composite number.
- If we multiply 1081 by 1, 2, 3 then we get the multiples of 1081 which are 1081, 2162 and so on.
1081 is a Composite number or Prime number
About the number 1081:
- 1081 has more than two factors which are 1, 23, 47 and 1081 and hence it is the composite number.
- 1081 is the odd composite number and it is not the perfect square also.
- If we divide 1081 by 1, 23, 47 and 1081 then we get remainder as zero. Hence, 1, 23, 47 and 1081 are the factors of 1081
Note:
- 1081 is not the perfect square.
- Factors of 1081: 1, 23, 47 and 1081
- Prime factors of 1081: 23, 47
Conclusion:
- 1081 is the composite number which has factors 1, 23, 47 and 1081.
- And hence, 1081 is not the prime number.
Multiple Choice Questions:
1) 1081 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 1081 are
a) 1
b) 23, 47
c) 1 and 1081
d) 1, 23, 47 and 1081
Ans: b) 23, 47
3) 1081 is the odd composite number because
a) It has factors 1, 23, 47 and 1081
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c