Is 1065 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 1065 is composite or not first we have to find its factors.
Contents
Factors of 1065:
- If we have taken numbers from 1, 2, 3…for checking factors of 1065, we found that 1065 has factors 1, 3, 5, 15, 71, 213, 355 and 1065. Hence, we must say that 1065 is a composite number.
- Thus, 1065 is the composite number.
- If we multiply 1065 by 1, 2, 3 then we get the multiples of 1065 which are 1065, 2130 and so on.
1065 is a Composite number or Prime number
About the number 1065:
- 1065 has more than two factors which are 1, 3, 5, 15, 71, 213, 355 and 1065 and hence it is the composite number.
- 1065 is the odd composite number and it is not the perfect square also.
- If we divide 1065 by 1, 3, 5, 15, 71, 213, 355 and 1065 then we get remainder as zero. Hence, 1, 3, 5, 15, 71, 213, 355 and 1065 are the factors of 1065
Note:
- 1065 is not the perfect square.
- Factors of 1065: 1, 3, 5, 15, 71, 213, 355 and 1065
- Prime factors of 1065: 3, 5, 71
Conclusion:
- 1065 is the composite number which has factors 1, 3, 5, 15, 71, 213, 355 and 1065.
- And hence, 1065 is not the prime number.
Multiple Choice Questions:
1) 1065 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 1065 are
a) 1
b) 3, 5, 71
c) 1, 15, 213, 355 and 1065
d) 1, 3, 5, 15, 71, 213, 355 and 1065
Ans: b) 3, 5, 71
3) 1065 is the odd composite number because
a) It has factors 1, 3, 5, 15, 71, 213, 355 and 1065
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c