Is 3225 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 3225 is composite or not first we have to find its factors.
Contents
Factors of 3225:
- If we have taken numbers from 1, 2, 3…for checking factors of 3225, we found that 3225 has factors 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225. Hence, we must say that 3225 is a composite number.
- Thus, 3225 is the composite number.
- If we multiply 3225 by 1, 2, 3 then we get the multiples of 3225 which are 3225, 6450 and so on.
3225 is a Composite number or Prime number
About the number 3225:
- 3225 has more than two factors which are 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225 and hence it is the composite number.
- 3225 is the odd composite number and it is not the perfect square also.
- If we divide 3225 by 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225 then we get remainder as zero. Hence 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225 are the factors of 3225
Note:
- 3225 is not the perfect square.
- Factors of 3225: 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225
- Prime factors of 3225: 3, 5, 43
Conclusion:
- 3225 is the composite number which has factors 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225.
- And hence, 3225 is not the prime number.
Multiple Choice Questions:
1) 3225 is a
a) odd number
b) Prime number
c) even number
d) Both a and c
Ans: a) odd number
2) The non-prime factors of a composite number 3225 are
a) 1
b) 3, 5, 43
c) 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225
d) 1, 15, 25, 75, 129, 215, 645, 1075 and 3225
Ans: d) 1, 15, 25, 75, 129, 215, 645, 1075 and 3225
3) 3225 is the odd composite number because
a) It has factors 1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075 and 3225
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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