Is 3129 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 3129 is composite or not first we have to find its factors.
Contents
Factors of 3129:
- If we have taken numbers from 1, 2, 3…for checking factors of 3129, we found that 3129 has factors 1, 3, 7, 21, 149, 447, 1043 and 3129. Hence, we must say that 3129 is a composite number.
- Thus, 3129 is the composite number.
- If we multiply 3129 by 1, 2, 3 then we get the multiples of 3129 which are 3129, 6258 and so on.
3129 is a Composite number or Prime number
About the number 3129:
- 3129 has more than two factors which are 1, 3, 7, 21, 149, 447, 1043 and 3129 and hence it is the composite number.
- 3129 is the odd composite number and it is not the perfect square also.
- If we divide 3129 by 1, 3, 7, 21, 149, 447, 1043 and 3129 then we get remainder as zero. Hence 1, 3, 7, 21, 149, 447, 1043 and 3129 are the factors of 3129
Note:
- 3129 is not the perfect square.
- Factors of 3129: 1, 3, 7, 21, 149, 447, 1043 and 3129
- Prime factors of 3129: 3, 7, 149
Conclusion:
- 3129 is the composite number which has factors 1, 3, 7, 21, 149, 447, 1043 and 3129.
- And hence, 3129 is not the prime number.
Multiple Choice Questions:
1) 3129 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 3129 are
a) 1
b) 3, 7, 149
c) 1, 3, 7, 21, 149, 447, 1043 and 3129
d) 1, 21, 447, 1043 and 3129
Ans: d) 1, 21, 447, 1043 and 3129
3) 3129 is the odd composite number because
a) It has factors 1, 3, 7, 21, 149, 447, 1043 and 3129
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
Why the below numbers are composite numbers
- Is 3127 a Composite number- Click Here
- Is 3123 a Composite number- Click Here