Is 1563 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 1563 is composite or not first we have to find its factors.
Contents
Factors of 1563:
- If we have taken numbers from 1, 2, 3…for checking factors of 1563, we found that 1563 has factors 1, 3, 521 and 1563. Hence, we must say that 1563 is a composite number.
- Thus, 1563 is the composite number.
- If we multiply 1563 by 1, 2, 3 then we get the multiples of 1563 which are 1563, 3126 and so on.
1563 is a Composite number or Prime number
About the number 1563:
- 1563 has more than two factors which are 1, 3, 521 and 1563 and hence it is the composite number.
- 1563 is the odd composite number and it is not the perfect square also.
- If we divide 1563 by 1, 3, 521 and 1563 then we get remainder as zero. Hence, 1, 3, 521 and 1563 are the factors of 1563
Note:
- 1563 is not the perfect square.
- Factors of 1563: 1, 3, 521 and 1563
- Prime factors of 1563: 3, 521
Conclusion:
- 1563 is the composite number which has factors 1, 3, 521 and 1563.
- And hence, 1563 is not the prime number.
Multiple Choice Questions:
1) 1563 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1563 are
a) 1
b) 3, 521
c) 1 and 1563
d) 1, 3, 521 and 1563
Ans: b) 1 and 1563
3) 1563 is the odd composite number because
a) It has factors 1, 3, 521 and 1563
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all