Is 369 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 369 is composite or not first we have to find its factors.
Contents
Factors of 369:
- If we have taken numbers from 1, 2, 3…for checking factors of 369, we found that 369 has factors 1, 3, 9, 41, 123 and 369. Hence, we must say that 369 is a composite number.
- Thus, 369 is the composite number.
- If we multiply 369 by 1, 2, 3 then we get the multiples of 369 which are 369, 738 and so on.
369 is a Composite number or Prime number
About the number 369:
- 369 has more than two factors which are 1, 3, 9, 41, 123 and 369 and hence it is the composite number.
- 369 is the odd composite number and it is not the perfect square also.
- If we divide 369 by 1, 3, 9, 41, 123 and 369 then we get remainder as zero. Hence, 1, 3, 9, 41, 123 and 369 are the factors of 369.
Note:
- 369 is not the perfect square.
- Factors of 369: 1, 3, 9, 41, 123 and 369
- Prime factors of 369: 3, 41
Conclusion:
- 369 is the composite number which has factors 1, 3, 9, 41, 123 and 369.
- And hence, 369 is not the prime number.
Multiple Choice Questions:
1) 369 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 369 are
a) 1
b) 3, 41
c) 1, 9, 123 and 369
d) 1, 3, 9, 41, 123 and 369
Ans: b) 3, 41
3) 369 is the odd composite number because
a) It has factors 1, 3, 9, 41, 123 and 369
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c