Is 2222 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 2222 is composite or not first we have to find its factors.
Contents
Factors of 2222:
- If we have taken numbers from 1, 2, 3…for checking factors of 2222, we found that 2222 has factors 1, 2, 11, 22, 101, 202, 1111 and 2222. Hence, we must say that 2222 is a composite number.
- Thus, 2222 is the composite number.
- If we multiply 2222 by 1, 2, 3 then we get the multiples of 2222 which are 2222, 4444 and so on.
About the number 2222:
- 2222 has more than two factors which are 1, 2, 11, 22, 101, 202, 1111 and 2222 and hence it is the composite number.
- 2222 is the even composite number and it is not the perfect square also.
- If we divide 2222 by, 1, 2, 11, 22, 101, 202, 1111 and 2222 then we get remainder as zero. Hence, 1, 2, 11, 22, 101, 202, 1111 and 2222 are the factors of 2222.
Note:
- 2222 is not the perfect square.
- Factors of 2222: 1, 2, 11, 22, 101, 202, 1111 and 2222
- Prime factors of 2222: 2, 11, 101
Conclusion:
- 2222 is the composite number which has factors 1, 2, 11, 22, 101, 202, 1111 and 2222
- And hence, 2222 is not the prime number.
Multiple Choice Questions:
1) 2222 is a
a) Prime number
b) Odd number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 2222 are
a) 2222
b) 2, 11, 101
c) 1, 22, 202, 1111 and 2222
d) 1, 2, 11, 22, 101, 202, 1111 and 2222
Ans: c) 1, 22, 202, 1111 and 2222
3) 2222 is composite number because
a) It has factors 1, 2, 11, 22, 101, 202, 1111 and 2222
b) It has only two factors
c) Divisible by 2
d) Both a and c
Ans: a) it has factors 1, 2, 11, 22, 101, 202, 1111 and 2222