Is 2787 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 2787 is composite or not first we have to find its factors.
Contents
Factors of 2787:
- If we have taken numbers from 1, 2, 3…for checking factors of 2787, we found that 2787 has factors 1, 3, 929 and 2787. Hence, we must say that 2787 is a composite number.
- Thus, 2787 is the composite number.
- If we multiply 2787 by 1, 2, 3 then we get the multiples of 2787 which are 2787, 5574 and so on.
2787 is a Composite number or Prime number
About the number 2787:
- 2787 has more than two factors which are 1, 3, 929 and 2787 and hence it is the composite number.
- 2787 is the odd composite number and it is not the perfect square also.
- If we divide 2787 by 1, 3, 929 and 2787 then we get remainder as zero. Hence 1, 3, 929 and 2787 are the factors of 2787
Note:
- 2787 is not the perfect square.
- Factors of 2787: 1, 3, 929 and 2787
- Prime factors of 2787: 3, 929
Conclusion:
- 2787 is the composite number which has factors 1, 3, 929 and 2787.
- And hence, 2787 is not the prime number.
Multiple Choice Questions:
1) 2787 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 2787 are
a) 1
b) 3, 929
c) 1, 3, 929 and 2787
d) 1 and 2787
Ans: d) 1 and 2787
3) 2787 is the odd composite number because
a) It has factors 1, 3, 929 and 2787
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all