Is 2135 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 2135 is composite or not first we have to find its factors.
Contents
Factors of 2135:
- If we have taken numbers from 1, 2, 3…for checking factors of 2135, we found that 2135 has factors 1, 5, 7, 35, 61, 305, 427 and 2135. Hence, we must say that 2135 is a composite number.
- Thus, 2135 is the composite number.
- If we multiply 2135 by 1, 2, 3 then we get the multiples of 2135 which are 2135, 4270 and so on.
2135 is a Composite number or Prime number
About the number 2135:
- 2135 has more than two factors which are 1, 5, 7, 35, 61, 305, 427 and 2135 and hence it is the composite number.
- 2135 is the odd composite number and it is not the perfect square also.
- If we divide 2135 by 1, 5, 7, 35, 61, 305, 427 and 2135 then we get remainder as zero. Hence, 1, 5, 7, 35, 61, 305, 427 and 2135 are the factors of 2135
Note:
- 2135 is not the perfect square.
- Factors of 2135: 1, 5, 7, 35, 61, 305, 427 and 2135
- Prime factors of 2135: 5, 7, 61
Conclusion:
- 2135 is the composite number which has factors 1, 5, 7, 35, 61, 305, 427 and 2135.
- And hence, 2135 is not the prime number.
Multiple Choice Questions:
1) 2135 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 2135 are
a) 1
b) 5, 7, 61
c) 1 and 2135
d) 1, 5, 7, 35, 61, 305, 427 and 2135
Ans: b) 5, 7, 61
3) 2135 is the composite number because
a) It has factors 1, 5, 7, 35, 61, 305, 427 and 2135
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