Is 556 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 556 is composite or not first we have to find its factors.
Contents
Factors of 556:
- If we have taken numbers from 1, 2, 3…for checking factors of 556, we found that 556 has factors 1, 2, 4, 139, 278 and 556. Hence, we must say that 556 is a composite number.
- Thus, 556 is the composite umber.
- If we multiply 556 by 1, 2, 3 then we get the multiples of 556 which are 556, 1112 and so on.
About the number 556:
- 556 has more than two factors which are 1, 2, 4, 139, 278 and 556 and hence it is the composite number.
- 556 is the even composite number and it is not the perfect square also.
- If we divide 556 by 1, 2, 4, 139, 278 and 556 then we get remainder as zero. Hence, 1, 2, 4, 139, 278 and 556 are the factors of 556.
Note:
- 556 is not the perfect square.
- Factors of 556: 1, 2, 4, 139, 278 and 556
- Prime factors of 556: 2, 139
Conclusion:
- 556 is the composite number which has factors 1, 2, 4, 139, 278 and 556
- And hence, 556 is not the prime number.
Multiple Choice Questions:
1) 556 is a
a) Prime number
b) Even number
c) Composite number
d) Both b and c
Ans: d) both b and c
2) The prime factors of a composite number 556 are
a) 1
b) 2, 139
c) 1, 4, 278 and 556
d) 1, 2, 4, 139, 278 and 556
Ans: b) 2, 139
3) 556 is the even composite number because
a) It has two factors
b) More than two factors
c) Divisible by 2
d) Both b and c
Ans: d) both b and c