Is 2947 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 2947 is composite or not first we have to find its factors.
Contents
Factors of 2947:
- If we have taken numbers from 1, 2, 3…for checking factors of 2947, we found that 2947 has factors 1, 7, 421 and 2947. Hence, we must say that 2947 is a composite number.
- Thus, 2947 is the composite number.
- If we multiply 2947 by 1, 2, 3 then we get the multiples of 2947 which are 2947, 5894 and so on.
2947 is a Composite number or Prime number
About the number 2947:
- 2947 has more than two factors which are 1, 7, 421 and 2947 and hence it is the composite number.
- 2947 is the odd composite number and it is not the perfect square also.
- If we divide 2947 by 1, 7, 421 and 2947 then we get remainder as zero. Hence 1, 7, 421 and 2947 are the factors of 2947
Note:
- 2947 is not the perfect square.
- Factors of 2947: 1, 7, 421 and 2947
- Prime factors of 2947: 7, 421
Conclusion:
- 2947 is the composite number which has factors 1, 7, 421 and 2947.
- And hence, 2947 is not the prime number.
Multiple Choice Questions:
1) 2947 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 2947 are
a) 1
b) 7, 421
c) 1, 7, 421 and 2947
d) 1 and 2947
Ans: d) 1 and 2947
3) 2947 is the odd composite number because
a) It has factors 1, 7, 421 and 2947
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all