Is 2911 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 2911 is composite or not first we have to find its factors.
Contents
Factors of 2911:
- If we have taken numbers from 1, 2, 3…for checking factors of 2911, we found that 2911 has factors 1, 41, 71 and 2911. Hence, we must say that 2911 is a composite number.
- Thus, 2911 is the composite number.
- If we multiply 2911 by 1, 2, 3 then we get the multiples of 2911 which are 2911, 5822 and so on.
2911 is a Composite number or Prime number
About the number 2911:
- 2911 has more than two factors which are 1, 41, 71 and 2911 and hence it is the composite number.
- 2911 is the odd composite number and it is not the perfect square also.
- If we divide 2911 by 1, 41, 71 and 2911 then we get remainder as zero. Hence 1, 41, 71 and 2911 are the factors of 2911
Note:
- 2911 is not the perfect square.
- Factors of 2911: 1, 41, 71 and 2911
- Prime factors of 2911: 41, 71
Conclusion:
- 2911 is the composite number which has factors 1, 41, 71 and 2911.
- And hence, 2911 is not the prime number.
Multiple Choice Questions:
1) 2911 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 2911 are
a) 1
b) 41, 71
c) 1, 41, 71 and 2911
d) 1 and 2911
Ans: d) 1 and 2911
3) 2911 is the odd composite number because
a) It has factors 1, 41, 71 and 2911
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all