Is 1028 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 1028 is composite or not first we have to find its factors.
Contents
Factors of 1028:
- If we have taken numbers from 1, 2, 3…for checking factors of 1028, we found that 1028 has factors 1, 2, 4, 257, 514 and 1028. Hence, we must say that 1028 is a composite number.
- Thus, 1028 is the composite umber.
- If we multiply 1028 by 1, 2, 3 then we get the multiples of 1028 which are 1028, 2056 and so on.
About the number 1028:
- 1028 has more than two factors which are 1, 2, 4, 257, 514 and 1028 and hence it is the composite number.
- 1028 is the even composite number and it is not the perfect square also.
- If we divide 1028 by 1, 2, 4, 257, 514 and 1028 then we get remainder as zero. Hence, 1, 2, 4, 257, 514 and 1028 are the factors of 1028.
Note:
- 1028 is not the perfect square.
- Factors of 1028: 1, 2, 4, 257, 514 and 1028
- Prime factors of 1028: 2, 257
Conclusion:
- 1028 is the composite number which has factors 1, 2, 4, 257, 514 and 1028
- And hence, 1028 is not the prime number.
Multiple Choice Questions:
1) 1028 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 1028 are
a) 1
b) 2, 257
c) 1, 4, 514 and 1028
d) 1, 2, 4, 257, 514 and 1028
Ans: c) 1, 4, 514 and 1028
3) 1028 is even the composite number because
a) It has factors 1, 2, 4, 257, 514 and 1028
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all