Is 2397 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 2397 is composite or not first we have to find its factors.
Contents
Factors of 2397:
- If we have taken numbers from 1, 2, 3…for checking factors of 2397, we found that 2397 has factors 1, 3, 17, 47, 51, 141, 799 and 2397. Hence, we must say that 2397 is a composite number.
- Thus, 2397 is the composite number.
- If we multiply 2397 by 1, 2, 3 then we get the multiples of 2397 which are 2397, 4794 and so on.
2397 is a Composite number or Prime number
About the number 2397:
- 2397 has more than two factors which are 1, 3, 17, 47, 51, 141, 799 and 2397 and hence it is the composite number.
- 2397 is the odd composite number and it is not the perfect square also.
- If we divide 2397 by 1, 3, 17, 47, 51, 141, 799 and 2397 then we get remainder as zero. Hence, 1, 3, 17, 47, 51, 141, 799 and 2397 are the factors of 2397
Note:
- 2397 is not the perfect square.
- Factors of 2397: 1, 3, 17, 47, 51, 141, 799 and 2397
- Prime factors of 2397: 3, 17, 47
Conclusion:
- 2397 is the composite number which has factors 1, 3, 17, 47, 51, 141, 799 and 2397.
- And hence, 2397 is not the prime number.
Multiple Choice Questions:
1) 2397 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 2397 are
a) 1
b) 3, 17, 47
c) 1 and 2397
d) 1, 3, 17, 47, 51, 141, 799 and 2397
Ans: b) 3, 17, 47
3) 2397 is the composite number because
a) It has factors 1, 3, 17, 47, 51, 141, 799 and 2397
b) It has more than two factors
c) It is not divisible by 2
d) Both a and b
Ans: d) both a and b