Is 1025 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 1025 is composite or not first we have to find its factors.
Contents
Factors of 1025:
- If we have taken numbers from 1, 2, 3…for checking factors of 1025, we found that 1025 has factors 1, 5, 25, 41, 205 and 1025. Hence, we must say that 1025 is a composite number.
- Thus, 1025 is the composite number.
- If we multiply 1025 by 1, 2, 3 then we get the multiples of 1025 which are 1025, 2050 and so on.
1025 is a Composite number or Prime number
About the number 1025:
- 1025 has more than two factors which are 1, 5, 25, 41, 205 and 1025 and hence it is the composite number.
- 1025 is the odd composite number and it is not the perfect square also.
- If we divide 1025 by 1, 5, 25, 41, 205 and 1025 then we get remainder as zero. Hence, 1, 5, 25, 41, 205 and 1025 are the factors of 1025
Note:
- 1025 is not the perfect square.
- Factors of 1025: 1, 5, 25, 41, 205 and 1025
- Prime factors of 1025: 5, 41
Conclusion:
- 1025 is the composite number which has factors 1, 5, 25, 41, 205 and 1025.
- And hence, 1025 is not the prime number.
Multiple Choice Questions:
1) 1025 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 1025 are
a) 1
b) 5, 41
c) 1, 25, 205 and 1025
d) 1, 5, 25, 41, 205 and 1025
Ans: b) 5, 41
3) 1025 is the odd composite number because
a) It has factors 1, 5, 25, 41, 205 and 1025
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c