Is 2987 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 2987 is composite or not first we have to find its factors.
Contents
Factors of 2987:
- If we have taken numbers from 1, 2, 3…for checking factors of 2987, we found that 2987 has factors 1, 29, 103 and 2987. Hence, we must say that 2987 is a composite number.
- Thus, 2987 is the composite number.
- If we multiply 2987 by 1, 2, 3 then we get the multiples of 2987 which are 2987, 5974 and so on.
2987 is a Composite number or Prime number
About the number 2987:
- 2987 has more than two factors which are 1, 29, 103 and 2987 and hence it is the composite number.
- 2987 is the odd composite number and it is not the perfect square also.
- If we divide 2987 by 1, 29, 103 and 2987 then we get remainder as zero. Hence 1, 29, 103 and 2987 are the factors of 2987
Note:
- 2987 is not the perfect square.
- Factors of 2987: 1, 29, 103 and 2987
- Prime factors of 2987: 29, 103
Conclusion:
- 2987 is the composite number which has factors 1, 29, 103 and 2987.
- And hence, 2987 is not the prime number.
Multiple Choice Questions:
1) 2987 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 2987 are
a) 1
b) 29, 103
c) 1, 29, 103 and 2987
d) 1 and 2987
Ans: d) 1 and 2987
3) 2987 is the odd composite number because
a) It has factors 1, 29, 103 and 2987
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all