Is 3345 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 3345 is composite or not first we have to find its factors.
Contents
Factors of 3345:
- If we have taken numbers from 1, 2, 3…for checking factors of 3345, we found that 3345 has factors 1, 3, 5, 15, 223, 669, 1115 and 3345. Hence, we must say that 3345 is a composite number.
- Thus, 3345 is the composite number.
- If we multiply 3345 by 1, 2, 3 then we get the multiples of 3345 which are 3345, 6690 and so on.
3345 is a Composite number or Prime number
About the number 3345:
- 3345 has more than two factors which are 1, 3, 5, 15, 223, 669, 1115 and 3345 and hence it is the composite number.
- 3345 is the odd composite number and it is not the perfect square also.
- If we divide 3345 by 1, 3, 5, 15, 223, 669, 1115 and 3345 then we get remainder as zero. Hence 1, 3, 5, 15, 223, 669, 1115 and 3345 are the factors of 3345
Note:
- 3345 is not the perfect square.
- Factors of 3345: 1, 3, 5, 15, 223, 669, 1115 and 3345
- Prime factors of 3345: 3, 5 , 223
Conclusion:
- 3345 is the composite number which has factors 1, 3, 5, 15, 223, 669, 1115 and 3345.
- And hence, 3345 is not the prime number.
Multiple Choice Questions:
1) 3345 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 3345 are
a) 1
b) 3, 5, 223
c) 1, 3, 5, 15, 223, 669, 1115 and 3345
d) 1, 15, 669, 1115 and 3345
Ans: d) 1, 15, 669, 1115 and 3345
3) 3345 is the odd composite number because
a) It has factors 1, 3, 5, 15, 223, 669, 1115 and 3345
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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