Is 3255 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 3255 is composite or not first we have to find its factors.
Contents
Factors of 3255:
- If we have taken numbers from 1, 2, 3…for checking factors of 3255, we found that 3255 has factors 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255. Hence, we must say that 3255 is a composite number.
- Thus, 3255 is the composite number.
- If we multiply 3255 by 1, 2, 3 then we get the multiples of 3255 which are 3255, 6510 and so on.
3255 is a Composite number or Prime number
About the number 3255:
- 3255 has more than two factors which are 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255 and hence it is the composite number.
- 3255 is the odd composite number and it is not the perfect square also.
- If we divide 3255 by 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255 then we get remainder as zero. Hence 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255 are the factors of 3255
Note:
- 3255 is not the perfect square.
- Factors of 3255: 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255
- Prime factors of 3255: 3, 5, 7, 31
Conclusion:
- 3255 is the composite number which has factors 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255.
- And hence, 3255 is not the prime number.
Multiple Choice Questions:
1) 3255 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 3255 are
a) 1
b) 3, 5, 7, 31
c) 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255
d) 1, 15, 21, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255
Ans: d) 1, 15, 21, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255
3) 3255 is the odd composite number because
a) It has factors 1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085 and 3255
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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