Is 361 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 361 is composite or not first we have to find its factors.
Contents
Factors of 361:
- If we have taken numbers from 1, 2, 3…for checking factors of 361, we found that 361 has factors 1, 19 and 361. Hence, we must say that 361 is a composite number.
- Thus, 361 is the composite number.
- If we multiply 361 by 1, 2, 3 then we get the multiples of 361 which are 361, 722 and so on.
361 is a Composite number or Prime number
About the number 361:
- 361 has more than two factors which are 1, 19 and 361 and hence it is the composite number.
- 361 is the odd composite number and it is the perfect square also.
- If we divide 361 by 1, 19 and 361 then we get remainder as zero. Hence, 1, 19 and 361 are the factors of 361.
Note:
- 361 is the perfect square.
- Factors of 361: 1, 19 and 361
- Prime factors of 361: 19
Conclusion:
- 361 is the composite number which has factors 1, 19 and 361.
- And hence, 361 is not the prime number.
Multiple Choice Questions:
1) 361 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 361 are
a) 1
b) 19
c) 1 and 361
d) 1, 19 and 361
Ans: b) 19
3) 361 is the odd composite number because
a) It has factors 1, 19 and 361
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c