Is 2855 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 2855 is composite or not first we have to find its factors.
Contents
Factors of 2855:
- If we have taken numbers from 1, 2, 3…for checking factors of 2855, we found that 2855 has factors 1, 5, 571 and 2855. Hence, we must say that 2855 is a composite number.
- Thus, 2855 is the composite number.
- If we multiply 2855 by 1, 2, 3 then we get the multiples of 2855 which are 2855, 5710 and so on.
2855 is a Composite number or Prime number
About the number 2855:
- 2855 has more than two factors which are 1, 5, 571 and 2855 and hence it is the composite number.
- 2855 is the odd composite number and it is not the perfect square also.
- If we divide 2855 by 1, 5, 571 and 2855 then we get remainder as zero. Hence 1, 5, 571 and 2855 are the factors of 2855
Note:
- 2855 is not the perfect square.
- Factors of 2855: 1, 5, 571 and 2855
- Prime factors of 2855: 5, 571
Conclusion:
- 2855 is the composite number which has factors 1, 5, 571 and 2855.
- And hence, 2855 is not the prime number.
Multiple Choice Questions:
1) 2855 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 2855 are
a) 1
b) 5, 571
c) 1, 5, 571 and 2855
d) 1 and 2855
Ans: d) 1 and 2855
3) 2855 is the odd composite number because
a) It has factors 1, 5, 571 and 2855
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all