Is 122 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 122 is composite or not first we have to find its factors.
Contents
Factors of 122:
- If we have taken numbers from 1, 2, 3…for checking factors of 122, we found that 122 has factors 1, 2, 61 and 122. Hence, we must say that 122 is a composite number.
- Thus, 122 is the composite number.
- If we multiply 122 by 1, 2, 3 then we get the multiples of 122 which are 122, 244, and so on.
About the number 122:
- 122 has more than two factors which are 1,2, 61 and 122 and hence it is the composite number.
- 122 is the even composite number and it is not the perfect square also.
- If we divide 122 by 1,2, 61 and 122 then we get remainder as zero. Hence, 1, 2, 61 and 122 are the factors of 122.
Note:
- 122 is not the perfect square.
- Factors of 122: 1, 2, 61 and 122
- Prime factors of 122: 2, 61
Conclusion:
- 122 is the composite number which has factors 1, 2, 61 and 122.
- And hence, 122 is not the prime number.
Multiple Choice Questions:
1) 122 is a
a) even number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 122 are
a) 1
b) 2, 61
c) Both a and b
d) 1221
Ans: b) 2, 61
3) 1 is the not prime factor of 122 because
a) It is the prime number
b) 1 is neither prime nor composite number
c) Both a and b
d) Given statement is false
Ans: b) 1 is neither prime nor composite number