Is 1923 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 1923 is composite or not first we have to find its factors.
Contents
Factors of 1923:
- If we have taken numbers from 1, 2, 3…for checking factors of 1923, we found that 1923 has factors 1, 3, 641 and 1923. Hence, we must say that 1923 is a composite number.
- Thus, 1923 is the composite number.
- If we multiply 1923 by 1, 2, 3 then we get the multiples of 1923 which are 1923, 3846 and so on.
1923 is a Composite number or Prime number
About the number 1923:
- 1923 has more than two factors which are 1, 3, 641 and 1923 and hence it is the composite number.
- 1923 is the odd composite number and it is not the perfect square also.
- If we divide 1923 by 1, 3, 641 and 1923 then we get remainder as zero. Hence, 1, 3, 641 and 1923 are the factors of 1923
Note:
- 1923 is not the perfect square.
- Factors of 1923: 1, 3, 641 and 1923
- Prime factors of 1923: 3, 641
Conclusion:
- 1923 is the composite number which has factors 1, 3, 641 and 1923.
- And hence, 1923 is not the prime number.
Multiple Choice Questions:
1) 1923 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 1923 are
a) 1
b) 3, 641
c) 1 and 1923
d) 1, 3, 641 and 1923
Ans: c) 1 and 1923
3) 1923 is the odd composite number because
a) It has factors 1, 3, 641 and 1923
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all