Is 2845 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 2845 is composite or not first we have to find its factors.
Contents
Factors of 2845:
- If we have taken numbers from 1, 2, 3…for checking factors of 2845, we found that 2845 has factors 1, 5, 569 and 2845. Hence, we must say that 2845 is a composite number.
- Thus, 2845 is the composite number.
- If we multiply 2845 by 1, 2, 3 then we get the multiples of 2845 which are 2845, 5690 and so on.
2845 is a Composite number or Prime number
About the number 2845:
- 2845 has more than two factors which are 1, 5, 569 and 2845 and hence it is the composite number.
- 2845 is the odd composite number and it is not the perfect square also.
- If we divide 2845 by 1, 5, 569 and 2845 then we get remainder as zero. Hence 1, 5, 569 and 2845 are the factors of 2845
Note:
- 2845 is not the perfect square.
- Factors of 2845: 1, 5, 569 and 2845
- Prime factors of 2845: 5, 569
Conclusion:
- 2845 is the composite number which has factors 1, 5, 569 and 2845.
- And hence, 2845 is not the prime number.
Multiple Choice Questions:
1) 2845 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 2845 are
a) 1
b) 5, 569
c) 1, 5, 569 and 2845
d) 1 and 2845
Ans: d) 1 and 2845
3) 2845 is the odd composite number because
a) It has factors 1, 5, 569 and 2845
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all