Is 1158 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 1158 is composite or not first we have to find its factors.
Contents
Factors of 1158:
- If we have taken numbers from 1, 2, 3…for checking factors of 1158, we found that 1158 has factors 1, 2, 3, 6, 193, 386, 579 and 1158. Hence, we must say that 1158 is a composite number.
- Thus, 1158 is the composite number.
- If we multiply 1158 by 1, 2, 3 then we get the multiples of 1158 which are 1158, 2316 and so on.
About the number 1158:
- 1158 has more than two factors which are 1, 2, 3, 6, 193, 386, 579 and 1158 and hence it is the composite number.
- 1158 is the even composite number and it is not the perfect square also.
- If we divide 1158 by 1, 2, 3, 6, 193, 386, 579 and 1158 then we get remainder as zero. Hence, 1, 2, 3, 6, 193, 386, 579 and 1158 are the factors of 1158.
Note:
- 1158 is not the perfect square.
- Factors of 1158: 1, 2, 3, 6, 193, 386, 579 and 1158
- Prime factors of 1158: 2, 3, 193
Conclusion:
- 1158 is the composite number which has factors 1, 2, 3, 6, 193, 386, 579 and 1158
- And hence, 1158 is not the prime number.
Multiple Choice Questions:
1) 1158 is a
a) Even number
b) Not a perfect square number
c) Composite number
d) all
Ans: d) all
2) The composite factors of a composite number 1158 are
a) 6, 386, 579 and 1158
b) 2, 3, 193
c) 1, 6, 386, 579 and 1158
d) 1, 2, 3, 6, 193, 386, 579 and 1158
Ans: a) 6, 386, 579 and 1158
3) 1158 is composite number because
a) It has factors 1, 2, 3, 6, 193, 386, 579 and 1158
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b