Is 3993 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 3993 is composite or not first we have to find its factors.
Contents
Factors of 3993:
- If we have taken numbers from 1, 2, 3…for checking factors of 3993, we found that 3993 has factors 1, 3, 11, 33, 121, 363, 1331 and 3993. Hence, we must say that 3993 is a composite number.
- Thus, 3993 is the composite number.
- If we multiply 3993 by 1, 2, 3 then we get the multiples of 3993 which are 3993, 7996 and so on.
3993 is a Composite number or Prime number
About the number 3993:
- 3993 has more than two factors which are 1, 3, 11, 33, 121, 363, 1331 and 3993 and hence it is the composite number.
- 3993 is the odd composite number and it is not the perfect square also.
- If we divide 3993 by 1, 3, 11, 33, 121, 363, 1331 and 3993 then we get remainder as zero. Hence 1, 3, 11, 33, 121, 363, 1331 and 3993 are the factors of 3993
Note:
- 3993 is not the perfect square.
- Factors of 3993:1, 3, 11, 33, 121, 363, 1331 and 3993
- Prime factors of 3993: 3, 11
Conclusion:
- 3993 is the composite number which has factors 1, 3, 11, 33, 121, 363, 1331 and 3993.
- And hence, 3993 is not the prime number.
Multiple Choice Questions:
1) 3993 is a
a) odd number
b) Prime number
c) even number
d) Both a and c
Ans: a) odd number
2) The non-prime factors of a composite number 3993 are
a) 1
b) 3, 11
c) 1, 3, 11, 33, 121, 363, 1331 and 3993
d) 1, 33, 121, 363, 1331 and 3993
Ans: d) 1, 33, 121, 363, 1331 and 3993
3) 3993 is the odd composite number because
a) It has factors 1, 3, 11, 33, 121, 363, 1331 and 3993
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
Why the below numbers are composite numbers
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