Is 873 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 873 is composite or not first we have to find its factors.
Contents
Factors of 873:
- If we have taken numbers from 1, 2, 3…for checking factors of 873, we found that 873 has factors 1, 3, 9, 97, 291 and 873. Hence, we must say that 873 is a composite number.
- Thus, 873 is the composite number.
- If we multiply 873 by 1, 2, 3 then we get the multiples of 873 which are 873, 1746 and so on.
873 is a Composite number or Prime number
About the number 873:
- 873 has more than two factors which are 1, 3, 9, 97, 291 and 873 and hence it is the composite number.
- 873 is the odd composite number and it is not the perfect square also.
- If we divide 873 by 1, 3, 9, 97, 291 and 873 then we get remainder as zero. Hence, 1, 3, 9, 97, 291 and 873 are the factors of 873
Note:
- 873 is not the perfect square.
- Factors of 873: 1, 3, 9, 97, 291 and 873
- Prime factors of 873: 3, 97
Conclusion:
- 873 is the composite number which has factors 1, 3, 9, 97, 291 and 873.
- And hence, 873 is not the prime number.
Multiple Choice Questions:
1) 873 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 873 are
a) 1
b) 3, 97
c) 1, 9, 291 and 873
d) 1, 3, 9, 97, 291 and 873
Ans: b) 3, 97
3) 873 is the odd composite number because
a) It has factors 1, 3, 9, 97, 291 and 873
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c