Is 325 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 325 is composite or not first we have to find its factors.
Contents
Factors of 325:
- If we have taken numbers from 1, 2, 3…for checking factors of 325, we found that 325 has factors 1, 5, 13, 25, 65 and 325. Hence, we must say that 325 is a composite number.
- Thus, 325 is the composite number.
- If we multiply 325 by 1, 2, 3 then we get the multiples of 325 which are 325, 650 and so on.
325 is a Composite number or Prime number
About the number 325:
- 325 has more than two factors which are 1, 5, 13, 25, 65 and 325 and hence it is the composite number.
- 325 is the odd composite number and it is not the perfect square also.
- If we divide 325 by 1, 5, 13, 25, 65 and 325 then we get remainder as zero. Hence, 1, 5, 13, 25, 65 and 325 are the factors of 325.
Note:
- 325 is not the perfect square.
- Factors of 325: 1, 5, 13, 25, 65 and 325
- Prime factors of 325: 5, 13
Conclusion:
- 325 is the composite number which has factors 1, 5, 13, 25, 65 and 325.
- And hence, 325 is not the prime number.
Multiple Choice Questions:
1) 325 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 325 are
a) 1
b) 5, 13
c) 1, 25, 65 and 325
d) 1, 5, 13, 25, 65 and 325
Ans: b) 5, 13
3) 325 is the odd composite number because
a) It has factors 1, 5, 13, 25, 65 and 325
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c