Is 549 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 549 is composite or not first we have to find its factors.
Contents
Factors of 549:
- If we have taken numbers from 1, 2, 3…for checking factors of 549, we found that 549 has factors 1, 3, 9, 61, 183 and 549. Hence, we must say that 549 is a composite number.
- Thus, 549 is the composite number.
- If we multiply 549 by 1, 2, 3 then we get the multiples of 549 which are 549, 1098 and so on.
549 is a Composite number or Prime number
About the number 549:
- 549 has more than two factors which are 1, 3, 9, 61, 183 and 549 and hence it is the composite number.
- 549 is the odd composite number and it is not the perfect square also.
- If we divide 549 by 1, 3, 9, 61, 183 and 549 then we get remainder as zero. Hence, 1, 3, 9, 61, 183 and 549 are the factors of 549.
Note:
- 549 is not the perfect square.
- Factors of 549: 1, 3, 9, 61, 183 and 549
- Prime factors of 549: 3, 61
Conclusion:
- 549 is the composite number which has factors 1, 3, 9, 61, 183 and 549.
- And hence, 549 is not the prime number.
Multiple Choice Questions:
1) 549 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 549 are
a) 1
b) 3, 61
c) 1, 9, 183 and 549
d) 1, 3, 9, 61, 183 and 549
Ans: b) 3, 61
3) 549 is the odd composite number because
a) It has factors 1, 3, 9, 61, 183 and 549
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c