Is 4990 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 4990 is composite or not first we have to find its factors.
Contents
Factors of 4990:
- If we have taken numbers from 1, 2, 3…for checking factors of 4990 we found that 4990 has factors 1, 2, 5, 10, 499, 998, 2495 and 4990. Hence, we must say that 4990 is a composite number.
- Thus, 4990 is the composite number.
- If we multiply 4990 by 1, 2, 3 then we get the multiples of 4990 which are 4990, 9980 and so on.
About the number 4990:
- 4990 has more than two factors which are 1, 2, 5, 10, 499, 998, 2495 and 4990 and hence it is the composite number.
- 4990 is the even composite number and it is not the perfect square also.
- If we divide 4990 by, 1, 2, 5, 10, 499, 998, 2495 and 4990 then we get remainder as zero. Hence, 1, 2, 5, 10, 499, 998, 2495 and 4990 are the factors of 4990.
Note:
- 4990 is not the perfect square.
- Factors of 4990: 1, 2, 5, 10, 499, 998, 2495 and 4990
- Prime factors of 4990: 2, 5, 499
Conclusion:
- 4990 is the composite number which has factors, 1, 2, 5, 10, 499, 998, 2495 and 4990
- And hence, 4990 is not the prime number.
Multiple Choice Questions:
1) 4990 is a
a) Prime number
b) even number
c) even Composite number
d) Both a and c
Ans: c) even composite number
2) The prime factors of a composite number 4990 are
a) 4990
b) 2, 5, 499
c) 10, 998, 2495 and 4990
d) 1, 2, 5, 10, 499, 998, 2495 and 4990
Ans: b) 2, 5, 499
3) 4990 is even composite number because
a) It has factors 1, 2, 5, 10, 499, 998, 2495 and 4990
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all