Is 4986 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 4986 is composite or not first we have to find its factors.
Contents
Factors of 4986:
- If we have taken numbers from 1, 2, 3…for checking factors of 4986 we found that 4986 has factors 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986. Hence, we must say that 4986 is a composite number.
- Thus, 4986 is the composite number.
- If we multiply 4986 by 1, 2, 3 then we get the multiples of 4986 which are 4986, 9972 and so on.
About the number 4986:
- 4986 has more than two factors which are 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986 and hence it is the composite number.
- 4986 is the even composite number and it is not the perfect square also.
- If we divide 4986 by, 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986 then we get remainder as zero. Hence, 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986 are the factors of 4986.
Note:
- 4986 is not the perfect square.
- Factors of 4986: 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986
- Prime factors of 4986: 2, 3, 277
Conclusion:
- 4986 is the composite number which has factors, 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986
- And hence, 4986 is not the prime number.
Multiple Choice Questions:
1) 4986 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 4986 are
a) 4986
b) 2, 3, 277
c) 6, 9, 18, 554, 831, 1662, 2493 and 4986
d) 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986
Ans: b) 2, 3, 277
3) 4986 is even composite number because
a) It has factors 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493 and 4986
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all