Is 1018 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 1018 is composite or not first we have to find its factors.
Contents
Factors of 1018:
- If we have taken numbers from 1, 2, 3…for checking factors of 1018, we found that 1018 has factors 1, 2, 509 and 1018. Hence, we must say that 1018 is a composite number.
- Thus, 1018 is the composite umber.
- If we multiply 1018 by 1, 2, 3 then we get the multiples of 1018 which are 1018, 2036 and so on.
About the number 1018:
- 1018 has more than two factors which are 1, 2, 509 and 1018 and hence it is the composite number.
- 1018 is the even composite number and it is not the perfect square also.
- If we divide 1018 by 1, 2, 509 and 1018 then we get remainder as zero. Hence, 1, 2, 509 and 1018 are the factors of 1018.
Note:
- 1018 is not the perfect square.
- Factors of 1018: 1, 2, 509 and 1018
- Prime factors of 1018: 2, 509
Conclusion:
- 1018 is the composite number which has factors 1, 2, 509 and 1018
- And hence, 1018 is not the prime number.
Multiple Choice Questions:
1) 1018 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The non-prime factors of a composite number 1018 are
a) 1
b) 2, 509
c) 1 and 1018
d) 1, 2, 509 and 1018
Ans: c) 1 and 1018
3) 1018 is even the composite number because
a) It has factors 1, 2, 509 and 1018
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all