Is 3939 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 3939 is composite or not first we have to find its factors.
Contents
Factors of 3939:
- If we have taken numbers from 1, 2, 3…for checking factors of 3939, we found that 3939 has factors 1, 3, 13, 39, 101, 303, 1313 and 3939. Hence, we must say that 3939 is a composite number.
- Thus, 3939 is the composite number.
- If we multiply 3939 by 1, 2, 3 then we get the multiples of 3939 which are 3939, 7878 and so on.
3939 is a Composite number or Prime number
About the number 3939:
- 3939 has more than two factors which are 1, 3, 13, 39, 101, 303, 1313 and 3939 and hence it is the composite number.
- 3939 is the odd composite number and it is not the perfect square also.
- If we divide 3939 by 1, 3, 13, 39, 101, 303, 1313 and 3939 then we get remainder as zero. Hence 1, 3, 13, 39, 101, 303, 1313 and 3939 are the factors of 3939
Note:
- 3939 is not the perfect square.
- Factors of 3939:1, 3, 13, 39, 101, 303, 1313 and 3939
- Prime factors of 3939: 3, 13, 101
Conclusion:
- 3939 is the composite number which has factors 1, 3, 13, 39, 101, 303, 1313 and 3939.
- And hence, 3939 is not the prime number.
Multiple Choice Questions:
1) 3939 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 3939 are
a) 1
b) 3, 13, 101
c) 1, 3, 13, 39, 101, 303, 1313 and 3939
d) 1, 39, 303, 1313 and 3939
Ans: d) 1, 39, 303, 1313 and 3939
3) 3939 is the odd composite number because
a) It has factors 1, 3, 13, 39, 101, 303, 1313 and 3939
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
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