Is 2779 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 2779 is composite or not first we have to find its factors.
Contents
Factors of 2779:
- If we have taken numbers from 1, 2, 3…for checking factors of 2779, we found that 2779 has factors 1, 7, 397 and 2779. Hence, we must say that 2779 is a composite number.
- Thus, 2779 is the composite number.
- If we multiply 2779 by 1, 2, 3 then we get the multiples of 2779 which are 2779, 5558 and so on.
2779 is a Composite number or Prime number
About the number 2779:
- 2779 has more than two factors which are 1, 7, 397 and 2779 and hence it is the composite number.
- 2779 is the odd composite number and it is not the perfect square also.
- If we divide 2779 by 1, 7, 397 and 2779 then we get remainder as zero. Hence 1, 7, 397 and 2779 are the factors of 2779
Note:
- 2779 is not the perfect square.
- Factors of 2779: 1, 7, 397 and 2779
- Prime factors of 2779: 7, 397
Conclusion:
- 2779 is the composite number which has factors 1, 7, 397 and 2779.
- And hence, 2779 is not the prime number.
Multiple Choice Questions:
1) 2779 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 2779 are
a) 1
b) 7, 397
c) 1, 7, 397 and 2779
d) 1 and 2779
Ans: d) 1 and 2779
3) 2779 is the odd composite number because
a) It has factors 1, 7, 397 and 2779
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all