Is 2785 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 2785 is composite or not first we have to find its factors.
Contents
Factors of 2785:
- If we have taken numbers from 1, 2, 3…for checking factors of 2785, we found that 2785 has factors 1, 5, 557 and 2785. Hence, we must say that 2785 is a composite number.
- Thus, 2785 is the composite number.
- If we multiply 2785 by 1, 2, 3 then we get the multiples of 2785 which are 2785, 5570 and so on.
2785 is a Composite number or Prime number
About the number 2785:
- 2785 has more than two factors which are 1, 5, 557 and 2785 and hence it is the composite number.
- 2785 is the odd composite number and it is not the perfect square also.
- If we divide 2785 by 1, 5, 557 and 2785 then we get remainder as zero. Hence 1, 5, 557 and 2785 are the factors of 2785
Note:
- 2785 is not the perfect square.
- Factors of 2785: 1, 5, 557 and 2785
- Prime factors of 2785: 5, 557
Conclusion:
- 2785 is the composite number which has factors 1, 5, 557 and 2785.
- And hence, 2785 is not the prime number.
Multiple Choice Questions:
1) 2785 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 2785 are
a) 1
b) 5, 557
c) 1, 5, 557 and 2785
d) 1 and 2785
Ans: d) 1 and 2785
3) 2785 is the odd composite number because
a) It has factors 1, 5, 557 and 2785
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all