Is 993 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 993 is composite or not first we have to find its factors.
Contents
Factors of 993:
- If we have taken numbers from 1, 2, 3…for checking factors of 993, we found that 993 has factors 1, 3, 331 and 993. Hence, we must say that 993 is a composite number.
- Thus, 993 is the composite number.
- If we multiply 993 by 1, 2, 3 then we get the multiples of 993 which are 993, 1986 and so on.
993 is a Composite number or Prime number
About the number 993:
- 993 has more than two factors which are 1, 3, 331 and 993 and hence it is the composite number.
- 993 is the odd composite number and it is not the perfect square also.
- If we divide 993 by 1, 3, 331 and 993 then we get remainder as zero. Hence, 1, 3, 331 and 993 are the factors of 993
Note:
- 993 is not the perfect square.
- Factors of 993: 1, 3, 331 and 993
- Prime factors of 993: 3, 331
Conclusion:
- 993 is the composite number which has factors 1, 3, 331 and 993.
- And hence, 993 is not the prime number.
Multiple Choice Questions:
1) 993 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 993 are
a) 1
b) 3, 331
c) 1 and 993
d) 1, 3, 331 and 993
Ans: b) 3, 331
3) 993 is the odd composite number because
a) It has factors 1, 3, 331 and 993
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c