Is 3165 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 3165 is composite or not first we have to find its factors.
Contents
Factors of 3165:
- If we have taken numbers from 1, 2, 3…for checking factors of 3165, we found that 3165 has factors 1, 3, 5, 15, 211, 633, 1055 and 3165. Hence, we must say that 3165 is a composite number.
- Thus, 3165 is the composite number.
- If we multiply 3165 by 1, 2, 3 then we get the multiples of 3165 which are 3165, 6330 and so on.
3165 is a Composite number or Prime number
About the number 3165:
- 3165 has more than two factors which are 1, 3, 5, 15, 211, 633, 1055 and 3165 and hence it is the composite number.
- 3165 is the odd composite number and it is not the perfect square also.
- If we divide 3165 by 1, 3, 5, 15, 211, 633, 1055 and 3165 then we get remainder as zero. Hence 1, 3, 5, 15, 211, 633, 1055 and 3165 are the factors of 3165
Note:
- 3165 is not the perfect square.
- Factors of 3165: 1, 3, 5, 15, 211, 633, 1055 and 3165
- Prime factors of 3165: 3, 5, 211
Conclusion:
- 3165 is the composite number which has factors 1, 3, 5, 15, 211, 633, 1055 and 3165.
- And hence, 3165 is not the prime number.
Multiple Choice Questions:
1) 3165 is a
a) odd number
b) Prime number
c) even number
d) Both a and c
Ans: a) odd number
2) The non-prime factors of a composite number 3165 are
a) 1
b) 3, 5, 211
c) 1, 3, 5, 15, 211, 633, 1055 and 3165
d) 1, 15, 633, 1055 and 3165
Ans: d) 1, 15, 633, 1055 and 3165
3) 3165 is the odd composite number because
a) It has factors 1, 3, 5, 15, 211, 633, 1055 and 3165
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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