Is 3131 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 3131 is composite or not first we have to find its factors.
Contents
Factors of 3131:
- If we have taken numbers from 1, 2, 3…for checking factors of 3131, we found that 3131 has factors 1, 31, 101 and 3131. Hence, we must say that 3131 is a composite number.
- Thus, 3131 is the composite number.
- If we multiply 3131 by 1, 2, 3 then we get the multiples of 3131 which are 3131, 6262 and so on.
3131 is a Composite number or Prime number
About the number 3131:
- 3131 has more than two factors which are 1, 31, 101 and 3131 and hence it is the composite number.
- 3131 is the odd composite number and it is not the perfect square also.
- If we divide 3131 by 1, 31, 101 and 3131 then we get remainder as zero. Hence 1, 31, 101 and 3131 are the factors of 3131
Note:
- 3131 is not the perfect square.
- Factors of 3131: 1, 31, 101 and 3131
- Prime factors of 3131: 31, 101
Conclusion:
- 3131 is the composite number which has factors 1, 31, 101 and 3131.
- And hence, 3131 is not the prime number.
Multiple Choice Questions:
1) 3131 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 3131 are
a) 1
b) 31, 101
c) 1, 31, 101 and 3131
d) 1 and 3131
Ans: d) 1 and 3131
3) 3131 is the odd composite number because
a) It has factors 1, 31, 101 and 3131
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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