Is 1961 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 1961 is composite or not first we have to find its factors.
Contents
Factors of 1961:
- If we have taken numbers from 1, 2, 3…for checking factors of 1961, we found that 1961 has factors 1, 37, 53 and 1961. Hence, we must say that 1961 is a composite number.
- Thus, 1961 is the composite number.
- If we multiply 1961 by 1, 2, 3 then we get the multiples of 1961 which are 1961, 3922 and so on.
1961 is a Composite number or Prime number
About the number 1961:
- 1961 has more than two factors which are 1, 37, 53 and 1961 and hence it is the composite number.
- 1961 is the odd composite number and it is not the perfect square also.
- If we divide 1961 by 1, 37, 53 and 1961 then we get remainder as zero. Hence, 1, 37, 53 and 1961 are the factors of 1961
Note:
- 1961 is not the perfect square.
- Factors of 1961: 1, 37, 53 and 1961
- Prime factors of 1961: 37, 53
Conclusion:
- 1961 is the composite number which has factors 1, 37, 53 and 1961.
- And hence, 1961 is not the prime number.
Multiple Choice Questions:
1) 1961 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1961 are
a) 1
b) 37, 53
c) 1 and 1961
d) 1, 37, 53 and 1961
Ans: c) 1 and 1961
3) 1961 is the odd composite number because
a) It has factors 1, 37, 53 and 1961
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all