Is 1556 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 1556 is composite or not first we have to find its factors.
Contents
Factors of 1556:
- If we have taken numbers from 1, 2, 3…for checking factors of 1556, we found that 1556 has factors 1, 2, 4, 389, 778 and 1556. Hence, we must say that 1556 is a composite number.
- Thus, 1556 is the composite number.
- If we multiply 1556 by 1, 2, 3 then we get the multiples of 1556 which are 1556, 3112 and so on.
About the number 1556:
- 1556 has more than two factors which are 1, 2, 4, 389, 778 and 1556 and hence it is the composite number.
- 1556 is the even composite number and it is not the perfect square also.
- If we divide 1556 by 1, 2, 4, 389, 778 and 1556 then we get remainder as zero. Hence, 1, 2, 4, 389, 778 and 1556 are the factors of 1556.
Note:
- 1556 is not the perfect square.
- Factors of 1556: 1, 2, 4, 389, 778 and 1556
- Prime factors of 1556: 2, 389
Conclusion:
- 1556 is the composite number which has factors 1, 2, 4, 389, 778 and 1556
- And hence, 1556 is not the prime number.
Multiple Choice Questions:
1) 1556 is a
a) Even number
b) Odd number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 1556 are
a) 1556
b) 2, 389
c) 1, 2, 4, 389, 778 and 1556
d) 1, 2, 4, 389, 778 and 1556
Ans: b) 2, 389
3) 1556 is even composite number because
a) It has factors 1, 2, 4, 389, 778 and 1556
b) It has more than two factors
c) Divisible by 2
d) all
Ans: d) all