Is 3938 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 3938 is composite or not first we have to find its factors.
Contents
Factors of 3938:
- If we have taken numbers from 1, 2, 3…for checking factors of 3938, we found that 3938 has factors 1, 2, 11, 22, 179, 358, 1969 and 3938. Hence, we must say that 3938 is a composite number.
- Thus, 3938 is the composite number.
- If we multiply 3938 by 1, 2, 3 then we get the multiples of 3938 which are 3938, 7876 and so on.
About the number 3938:
- 3938 has more than two factors which are 1, 2, 11, 22, 179, 358, 1969 and 3938 and hence it is the composite number.
- 3938 is the even composite number and it is not the perfect square also.
- If we divide 3938 by, 1, 2, 11, 22, 179, 358, 1969 and 3938 then we get remainder as zero. Hence, 1, 2, 11, 22, 179, 358, 1969 and 3938 are the factors of 3938.
Note:
- 3938 is not the perfect square.
- Factors of 3938: 1, 2, 11, 22, 179, 358, 1969 and 3938
- Prime factors of 3938: 2, 11, 179
Conclusion:
- 3938 is the composite number which has factors, 1, 2, 11, 22, 179, 358, 1969 and 3938
- And hence, 3938 is not the prime number.
Multiple Choice Questions:
1) 3938 is a
a) Prime number
b) Even number
c) Composite number
d) Both b and c
Ans: d) both b and c
2) The composite factors of a composite number 3938 are
a) 3938
b) 2, 11, 179
c) 22, 358, 1969 and 3938
d) 1, 2, 11, 22, 179, 358, 1969 and 3938
Ans: c) 22, 358, 1969 and 3938
3) 3938 is composite number because
a) It has factors 1, 2, 11, 22, 179, 358, 1969 and 3938
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b