Is 1603 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 1603 is composite or not first we have to find its factors.
Contents
Factors of 1603:
- If we have taken numbers from 1, 2, 3…for checking factors of 1603, we found that 1603 has factors 1, 7, 229 and 1603. Hence, we must say that 1603 is a composite number.
- Thus, 1603 is the composite number.
- If we multiply 1603 by 1, 2, 3 then we get the multiples of 1603 which are 1603, 3206 and so on.
1603 is a Composite number or Prime number
About the number 1603:
- 1603 has more than two factors which are 1, 7, 229 and 1603 and hence it is the composite number.
- 1603 is the odd composite number and it is not the perfect square also.
- If we divide 1603 by 1, 7, 229 and 1603 then we get remainder as zero. Hence, 1, 7, 229 and 1603 are the factors of 1603
Note:
- 1603 is not the perfect square.
- Factors of 1603: 1, 7, 229 and 1603
- Prime factors of 1603: 7, 229
Conclusion:
- 1603 is the composite number which has factors 1, 7, 229 and 1603.
- And hence, 1603 is not the prime number.
Multiple Choice Questions:
1) 1603 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 1603 are
a) 1
b) 7, 229
c) 1 and 1603
d) 1, 7, 229 and 1603
Ans: b) 1 and 1603
3) 1603 is the odd composite number because
a) It has factors 1, 7, 229 and 1603
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all