Is 4220 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 4220 is composite or not first we have to find its factors.
Contents
Factors of 4220:
- If we have taken numbers from 1, 2, 3…for checking factors of 4220 we found that 4220 has factors 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220. Hence, we must say that 4220 is a composite number.
- Thus, 4220 is the composite number.
- If we multiply 4220 by 1, 2, 3 then we get the multiples of 4220 which are 4220, 8440 and so on.
About the number 4220:
- 4220 has more than two factors which are 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220 and hence it is the composite number.
- 4220 is the even composite number and it is not the perfect square also.
- If we divide 4220 by, 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220 then we get remainder as zero. Hence, 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220 are the factors of 4220.
Note:
- 4220 is not the perfect square.
- Factors of 4220: 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220
- Prime factors of 4220: 2, 5, 211
Conclusion:
- 4220 is the composite number which has factors, 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220
- And hence, 4220 is not the prime number.
Multiple Choice Questions:
1) 4220 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 4220 are
a) 4220
b) 2, 5, 211
c) 4, 10, 20, 422, 844, 1055, 2110 and 4220
d) 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220
Ans: c) 4, 10, 20, 422, 844, 1055, 2110 and 4220
3) 4220 is composite number because
a) It has factors 1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110 and 4220
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b