Is 4090 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 4090 is composite or not first we have to find its factors.
Contents
Factors of 4090:
- If we have taken numbers from 1, 2, 3…for checking factors of 4090 we found that 4090 has factors 1, 2, 5, 10, 409, 818, 2045 and 4090. Hence, we must say that 4090 is a composite number.
- Thus, 4090 is the composite number.
- If we multiply 4090 by 1, 2, 3 then we get the multiples of 4090 which are 4090, 8180 and so on.
About the number 4090:
- 4090 has more than two factors which are 1, 2, 5, 10, 409, 818, 2045 and 4090 and hence it is the composite number.
- 4090 is the even composite number and it is not the perfect square also.
- If we divide 4090 by, 1, 2, 5, 10, 409, 818, 2045 and 4090 then we get remainder as zero. Hence, 1, 2, 5, 10, 409, 818, 2045 and 4090 are the factors of 4090.
Note:
- 4090 is not the perfect square.
- Factors of 4090: 1, 2, 5, 10, 409, 818, 2045 and 4090
- Prime factors of 4090: 2, 5, 409
Conclusion:
- 4090 is the composite number which has factors, 1, 2, 5, 10, 409, 818, 2045 and 4090
- And hence, 4090 is not the prime number.
Multiple Choice Questions:
1) 4090 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 4090 are
a) 4090
b) 2, 5, 409
c) 10, 818, 2045 and 4090
d) 1, 2, 5, 10, 409, 818, 2045 and 4090
Ans: c) 10, 818, 2045 and 4090
3) 4090 is composite number because
a) It has factors 1, 2, 5, 10, 409, 818, 2045 and 4090
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b