Is 1443 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 1443 is composite or not first we have to find its factors.
Contents
Factors of 1443:
- If we have taken numbers from 1, 2, 3…for checking factors of 1443, we found that 1443 has factors 1, 3, 13, 37, 39, 111, 481 and 1443. Hence, we must say that 1443 is a composite number.
- Thus, 1443 is the composite number.
- If we multiply 1443 by 1, 2, 3 then we get the multiples of 1443 which are 1443, 2886 and so on.
1443 is a Composite number or Prime number
About the number 1443:
- 1443 has more than two factors which are 1, 3, 13, 37, 39, 111, 481 and 1443 and hence it is the composite number.
- 1443 is the odd composite number and it is not the perfect square also.
- If we divide 1443 by 1, 3, 13, 37, 39, 111, 481 and 1443 then we get remainder as zero. Hence, 1, 3, 13, 37, 39, 111, 481 and 1443 are the factors of 1443
Note:
- 1443 is not the perfect square.
- Factors of 1443: 1, 3, 13, 37, 39, 111, 481 and 1443
- Prime factors of 1443: 3, 13, 37
Conclusion:
- 1443 is the composite number which has factors 1, 3, 13, 37, 39, 111, 481 and 1443.
- And hence, 1443 is not the prime number.
Multiple Choice Questions:
1) 1443 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 1443 are
a) 1
b) 3, 13, 37
c) 1, 39, 111, 481 and 1443
d) 1, 3, 13, 37, 39, 111, 481 and 1443
Ans: b) 1, 39, 111, 481 and 1443
3) 1443 is the odd composite number because
a) It has factors 1, 3, 13, 37, 39, 111, 481 and 1443
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all