Is 2585 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 2585 is composite or not first we have to find its factors.
Contents
Factors of 2585:
- If we have taken numbers from 1, 2, 3…for checking factors of 2585, we found that 2585 has factors 1, 5, 11, 47, 55, 235, 517 and 2585. Hence, we must say that 2585 is a composite number.
- Thus, 2585 is the composite number.
- If we multiply 2585 by 1, 2, 3 then we get the multiples of 2585 which are 2585, 5170 and so on.
2585 is a Composite number or Prime number
About the number 2585:
- 2585 has more than two factors which are 1, 5, 11, 47, 55, 235, 517 and 2585 and hence it is the composite number.
- 2585 is the odd composite number and it is not the perfect square also.
- If we divide 2585 by 1, 5, 11, 47, 55, 235, 517 and 2585 then we get remainder as zero. Hence 1, 5, 11, 47, 55, 235, 517 and 2585 are the factors of 2585
Note:
- 2585 is not the perfect square.
- Factors of 2585: 1, 5, 11, 47, 55, 235, 517 and 2585
- Prime factors of 2585: 5, 11, 47
Conclusion:
- 2585 is the composite number which has factors 1, 5, 11, 47, 55, 235, 517 and 2585.
- And hence, 2585 is not the prime number.
Multiple Choice Questions:
1) 2585 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 2585 are
a) 1
b) 5, 11, 47
c) 1 and 2585
d) 1, 5, 11, 47, 55, 235, 517 and 2585
Ans: b) 5, 11, 47
3) 2585 is the composite number because
a) It has factors 1, 5, 11, 47, 55, 235, 517 and 2585
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