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