Is 1863 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 1863 is composite or not first we have to find its factors.
Contents
Factors of 1863:
- If we have taken numbers from 1, 2, 3…for checking factors of 1863, we found that 1863 has factors 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863. Hence, we must say that 1863 is a composite number.
- Thus, 1863 is the composite number.
- If we multiply 1863 by 1, 2, 3 then we get the multiples of 1863 which are 1863, 3726 and so on.
1863 is a Composite number or Prime number
About the number 1863:
- 1863 has more than two factors which are 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863 and hence it is the composite number.
- 1863 is the odd composite number and it is not the perfect square also.
- If we divide 1863 by 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863 then we get remainder as zero. Hence, 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863 are the factors of 1863
Note:
- 1863 is not the perfect square.
- Factors of 1863: 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863
- Prime factors of 1863: 3, 23
Conclusion:
- 1863 is the composite number which has factors 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863.
- And hence, 1863 is not the prime number.
Multiple Choice Questions:
1) 1863 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 1863 are
a) 1
b) 3, 23
c) 1, 9, 27, 69, 81, 207, 621 and 1863
d) 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863
Ans: b) 1, 9, 27, 69, 81, 207, 621 and 1863
3) 1863 is the odd composite number because
a) It has factors 1, 3, 9, 23, 27, 69, 81, 207, 621 and 1863
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all