Is 843 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 843 is composite or not first we have to find its factors.
Contents
Factors of 843:
- If we have taken numbers from 1, 2, 3…for checking factors of 843, we found that 843 has factors 1, 3, 281 and 843. Hence, we must say that 843 is a composite number.
- Thus, 843 is the composite number.
- If we multiply 843 by 1, 2, 3 then we get the multiples of 843 which are 843, 1686 and so on.
843 is a Composite number or Prime number
About the number 843:
- 843 has more than two factors which are 1, 3, 281 and 843 and hence it is the composite number.
- 843 is the odd composite number and it is not the perfect square also.
- If we divide 843 by 1, 3, 281 and 843 then we get remainder as zero. Hence, 1, 3, 281 and 843 are the factors of 843
Note:
- 843 is not the perfect square.
- Factors of 843: 1, 3, 281 and 843
- Prime factors of 843: 3, 281
Conclusion:
- 843 is the composite number which has factors 1, 3, 281 and 843.
- And hence, 843 is not the prime number.
Multiple Choice Questions:
1) 843 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 843 are
a) 1
b) 3, 281
c) 1 and 843
d) 1, 3, 281 and 843
Ans: b) 3, 281
3) 843 is the odd composite number because
a) It has factors 1, 3, 281 and 843
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c