Is 2665 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 2665 is composite or not first we have to find its factors.
Contents
Factors of 2665:
- If we have taken numbers from 1, 2, 3…for checking factors of 2665, we found that 2665 has factors 1, 5, 13, 41, 65, 205, 533 and 2665. Hence, we must say that 2665 is a composite number.
- Thus, 2665 is the composite number.
- If we multiply 2665 by 1, 2, 3 then we get the multiples of 2665 which are 2665, 5330 and so on.
2665 is a Composite number or Prime number
About the number 2665:
- 2665 has more than two factors which are 1, 5, 13, 41, 65, 205, 533 and 2665 and hence it is the composite number.
- 2665 is the odd composite number and it is not the perfect square also.
- If we divide 2665 by 1, 5, 13, 41, 65, 205, 533 and 2665 then we get remainder as zero. Hence 1, 5, 13, 41, 65, 205, 533 and 2665 are the factors of 2665
Note:
- 2665 is not the perfect square.
- Factors of 2665: 1, 5, 13, 41, 65, 205, 533 and 2665
- Prime factors of 2665: 5, 13, 41
Conclusion:
- 2665 is the composite number which has factors 1, 5, 13, 41, 65, 205, 533 and 2665.
- And hence, 2665 is not the prime number.
Multiple Choice Questions:
1) 2665 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 2665 are
a) 1
b) 5, 13, 41
c) 1 and 2665
d) 1, 5, 13, 41, 65, 205, 533 and 2665
Ans: b) 5, 13, 41
3) 2665 is the composite number because
a) It has factors 1, 5, 13, 41, 65, 205, 533 and 2665
b) It has more than two factors
c) It is not divisible by 2
d) Both a and b
Ans: d) both a and b