Is 4240 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 4240 is composite or not first we have to find its factors.
Contents
Factors of 4240:
- If we have taken numbers from 1, 2, 3…for checking factors of 4240 we found that 4240 has factors 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240. Hence, we must say that 4240 is a composite number.
- Thus, 4240 is the composite number.
- If we multiply 4240 by 1, 2, 3 then we get the multiples of 4240 which are 4240, 8480 and so on.
About the number 4240:
- 4240 has more than two factors which are 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240 and hence it is the composite number.
- 4240 is the even composite number and it is not the perfect square also.
- If we divide 4240 by, 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240 then we get remainder as zero. Hence, 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240 are the factors of 4240.
Note:
- 4240 is not the perfect square.
- Factors of 4240: 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240
- Prime factors of 4240: 2, 5, 53
Conclusion:
- 4240 is the composite number which has factors, 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240
- And hence, 4240 is not the prime number.
Multiple Choice Questions:
1) 4240 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 4240 are
a) 4240
b) 2, 5, 53
c) 4, 8, 10, 16, 20, 40, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240
d) 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240
Ans: c) 4, 8, 10, 16, 20, 40, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240
3) 4240 is composite number because
a) It has factors 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120 and 4240
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b