Is 3918 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 3918 is composite or not first we have to find its factors.
Contents
Factors of 3918:
- If we have taken numbers from 1, 2, 3…for checking factors of 3918, we found that 3918 has factors 1, 2, 3, 6, 653, 1306, 1959 and 3918. Hence, we must say that 3918 is a composite number.
- Thus, 3918 is the composite number.
- If we multiply 3918 by 1, 2, 3 then we get the multiples of 3918 which are 3918, 7836 and so on.
About the number 3918:
- 3918 has more than two factors which are 1, 2, 3, 6, 653, 1306, 1959 and 3918 and hence it is the composite number.
- 3918 is the even composite number and it is not the perfect square also.
- If we divide 3918 by, 1, 2, 3, 6, 653, 1306, 1959 and 3918 then we get remainder as zero. Hence, 1, 2, 3, 6, 653, 1306, 1959 and 3918 are the factors of 3918.
Note:
- 3918 is not the perfect square.
- Factors of 3918: 1, 2, 3, 6, 653, 1306, 1959 and 3918
- Prime factors of 3918: 2, 3, 653
Conclusion:
- 3918 is the composite number which has factors, 1, 2, 3, 6, 653, 1306, 1959 and 3918
- And hence, 3918 is not the prime number.
Multiple Choice Questions:
1) 3918 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 3918 are
a) 3918
b) 2, 3, 653
c) 6, 1306, 1959 and 3918
d) 1, 2, 3, 6, 653, 1306, 1959 and 3918
Ans: c) 6, 1306, 1959 and 3918
3) 3918 is composite number because
a) It has factors 1, 2, 3, 6, 653, 1306, 1959 and 3918
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b