Is 725 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 725 is composite or not first we have to find its factors.
Contents
Factors of 725:
- If we have taken numbers from 1, 2, 3…for checking factors of 725, we found that 725 has factors 1, 5, 25, 29, 145 and 725. Hence, we must say that 725 is a composite number.
- Thus, 725 is the composite number.
- If we multiply 725 by 1, 2, 3 then we get the multiples of 725 which are 725, 1450 and so on.
725 is a Composite number or Prime number
About the number 725:
- 725 has more than two factors which are 1, 5, 25, 29, 145 and 725 and hence it is the composite number.
- 725 is the odd composite number and it is not the perfect square also.
- If we divide 725 by 1, 5, 25, 29, 145 and 725 then we get remainder as zero. Hence, 1, 5, 25, 29, 145 and 725 are the factors of 725
Note:
- 725 is not the perfect square.
- Factors of 725: 1, 5, 25, 29, 145 and 725
- Prime factors of 725: 5, 29
Conclusion:
- 725 is the composite number which has factors 1, 5, 25, 29, 145 and 725.
- And hence, 725 is not the prime number.
Multiple Choice Questions:
1) 725 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 725 are
a) 1
b) 5, 29
c) 1, 25, 145 and 725
d) 1, 5, 25, 29, 145 and 725
Ans: b) 5, 29
3) 725 is the odd composite number because
a) It has factors 1, 5, 25, 29, 145 and 725
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c