Is 4840 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 4840 is composite or not first we have to find its factors.
Contents
Factors of 4840:
- If we have taken numbers from 1, 2, 3…for checking factors of 4840 we found that 4840 has factors 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840. Hence, we must say that 4840 is a composite number.
- Thus, 4840 is the composite number.
- If we multiply 4840 by 1, 2, 3 then we get the multiples of 4840 which are 4840, 9680 and so on.
About the number 4840:
- 4840 has more than two factors which are 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840 and hence it is the composite number.
- 4840 is the even composite number and it is not the perfect square also.
- If we divide 4840 by, 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840 then we get remainder as zero. Hence, 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840 are the factors of 4840.
Note:
- 4840 is not the perfect square.
- Factors of 4840: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840
- Prime factors of 4840: 2, 5, 11
Conclusion:
- 4840 is the composite number which has factors, 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840
- And hence, 4840 is not the prime number.
Multiple Choice Questions:
1) 4840 is a
a) Prime number
b) even number
c) even Composite number
d) Both a and c
Ans: c) even composite number
2) The prime factors of a composite number 4840 are
a) 4840
b) 2, 5, 11
c) 4, 8, 10, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840
d) 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840
Ans: b) 2, 5, 11
3) 4840 is even composite number because
a) It has factors 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420 and 4840
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all