Is 249 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 249 is composite or not first we have to find its factors.
Contents
Factors of 249:
- If we have taken numbers from 1, 2, 3…for checking factors of 249, we found that 249 has factors 1, 3, 83 and 249. Hence, we must say that 249 is a composite number.
- Thus, 249 is the composite number.
- If we multiply 249 by 1, 2, 3 then we get the multiples of 249 which are 249, 498, and so on.
249 is a Composite number or Prime number
About the number 249:
- 249 has more than two factors which are 1, 3, 83 and 249 and hence it is the composite number.
- 249 is the odd composite number and it is not the perfect square also.
- If we divide 249 by 1, 3, 83 and 249 then we get remainder as zero. Hence, 1, 3, 83 and 249 are the factors of 249.
Note:
- 249 is not the perfect square.
- Factors of 249: 1, 3, 83 and 249
- Prime factors of 249: 3, 83
Conclusion:
- 249 is the composite number which has factors 1, 3, 83 and 249.
- And hence, 249 is not the prime number.
Multiple Choice Questions:
1) 249 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 249 are
a) 1
b) 3, 83
c) 1 and 249
d) 1, 3, 83 and 249
Ans: b) 3, 83
3) 249 is the odd composite number because
a) It has factors 1, 3, 83 and 249
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c