Is 297 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 297 is composite or not first we have to find its factors.
Contents
Factors of 297:
- If we have taken numbers from 1, 2, 3…for checking factors of 297, we found that 297 has factors 1, 3, 9, 11, 27, 33, 99 and 297. Hence, we must say that 297 is a composite number.
- Thus, 297 is the composite number.
- If we multiply 297 by 1, 2, 3 then we get the multiples of 297 which are 297, 594 and so on.
297 is a Composite number or Prime number
About the number 297:
- 297 has more than two factors which are 1, 3, 9, 11, 27, 33, 99 and 297 and hence it is the composite number.
- 297 is the odd composite number and it is not the perfect square also.
- If we divide 297 by 1, 3, 9, 11, 27, 33, 99 and 297 then we get remainder as zero. Hence, 1, 3, 9, 11, 27, 33, 99 and 297 are the factors of 297.
Note:
- 297 is not the perfect square.
- Factors of 297: 1, 3, 9, 11, 27, 33, 99 and 297
- Prime factors of 297: 3, 11
Conclusion:
- 297 is the composite number which has factors 1, 3, 9, 11, 27, 33, 99 and 297.
- And hence, 297 is not the prime number.
Multiple Choice Questions:
1) 297 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 297 are
a) 1
b) 3, 11
c) 1, 9, 27, 33, 99 and 297
d) 1, 3, 9, 11, 27, 33, 99 and 297
Ans: b) 3, 11
3) 297 is the odd composite number because
a) It has factors 1, 3, 9, 11, 27, 33, 99 and 297
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c