Is 1233 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 1233 is composite or not first we have to find its factors.
Contents
Factors of 1233:
- If we have taken numbers from 1, 2, 3…for checking factors of 1233, we found that 1233 has factors 1, 3, 9, 137, 411 and 1233. Hence, we must say that 1233 is a composite number.
- Thus, 1233 is the composite number.
- If we multiply 1233 by 1, 2, 3 then we get the multiples of 1233 which are 1233, 2466 and so on.
1233 is a Composite number or Prime number
About the number 1233:
- 1233 has more than two factors which are 1, 3, 9, 137, 411 and 1233 and hence it is the composite number.
- 1233 is the odd composite number and it is not the perfect square also.
- If we divide 1233 by 1, 3, 9, 137, 411 and 1233 then we get remainder as zero. Hence, 1, 3, 9, 137, 411 and 1233 are the factors of 1233
Note:
- 1233 is not the perfect square.
- Factors of 1233: 1, 3, 9, 137, 411 and 1233
- Prime factors of 1233: 3, 137
Conclusion:
- 1233 is the composite number which has factors 1, 3, 9, 137, 411 and 1233.
- And hence, 1233 is not the prime number.
Multiple Choice Questions:
1) 1233 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 1233 are
a) 1
b) 3, 137
c) 1, 9, 411 and 1233
d) 1, 3, 9, 137, 411 and 1233
Ans: b) 1, 9, 411 and 1233
3) 1233 is the odd composite number because
a) It has factors 1, 3, 9, 137, 411 and 1233
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all