Is 3842 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 3842 is composite or not first we have to find its factors.
Contents
Factors of 3842:
- If we have taken numbers from 1, 2, 3…for checking factors of 3842, we found that 3842 has factors 1, 2, 17, 34, 113, 226, 1921 and 3842. Hence, we must say that 3842 is a composite number.
- Thus, 3842 is the composite number.
- If we multiply 3842 by 1, 2, 3 then we get the multiples of 3842 which are 3842, 7684 and so on.
About the number 3842:
- 3842 has more than two factors which are 1, 2, 17, 34, 113, 226, 1921 and 3842 and hence it is the composite number.
- 3842 is the even composite number and it is not the perfect square also.
- If we divide 3842 by, 1, 2, 17, 34, 113, 226, 1921 and 3842 then we get remainder as zero. Hence, 1, 2, 17, 34, 113, 226, 1921 and 3842 are the factors of 3842.
Note:
- 3842 is not the perfect square.
- Factors of 3842: 1, 2, 17, 34, 113, 226, 1921 and 3842
- Prime factors of 3842: 2, 17, 113
Conclusion:
- 3842 is the composite number which has factors, 1, 2, 17, 34, 113, 226, 1921 and 3842
- And hence, 3842 is not the prime number.
Multiple Choice Questions:
1) 3842 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 3842 are
a) 3842
b) 2, 17, 113
c) 34, 226, 1921 and 3842
d) 1, 2, 17, 34, 113, 226, 1921 and 3842
Ans: c) 34, 226, 1921 and 3842
3) 3842 is composite number because
a) It has factors 1, 2, 17, 34, 113, 226, 1921 and 3842
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b