Is 1449 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 1449 is composite or not first we have to find its factors.
Contents
Factors of 1449:
- If we have taken numbers from 1, 2, 3…for checking factors of 1449, we found that 1449 has factors 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449. Hence, we must say that 1449 is a composite number.
- Thus, 1449 is the composite number.
- If we multiply 1449 by 1, 2, 3 then we get the multiples of 1449 which are 1449, 2898 and so on.
1449 is a Composite number or Prime number
About the number 1449:
- 1449 has more than two factors which are 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449 and hence it is the composite number.
- 1449 is the odd composite number and it is not the perfect square also.
- If we divide 1449 by 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449 then we get remainder as zero. Hence, 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449 are the factors of 1449
Note:
- 1449 is not the perfect square.
- Factors of 1449: 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449
- Prime factors of 1449: 3, 7, 23
Conclusion:
- 1449 is the composite number which has factors 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449.
- And hence, 1449 is not the prime number.
Multiple Choice Questions:
1) 1449 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 1449 are
a) 1
b) 3, 7, 23
c) 1, 9, 21, 63, 69, 161, 207, 483 and 1449
d) 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449
Ans: b) 1, 9, 21, 63, 69, 161, 207, 483 and 1449
3) 1449 is the odd composite number because
a) It has factors 1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483 and 1449
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all