Is 1340 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 1340 is composite or not first we have to find its factors.
Contents
Factors of 1340:
- If we have taken numbers from 1, 2, 3…for checking factors of 1340, we found that 1340 has factors 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340. Hence, we must say that 1340 is a composite number.
- Thus, 1340 is the composite number.
- If we multiply 1340 by 1, 2, 3 then we get the multiples of 1340 which are 1340, 2680 and so on.
About the number 1340:
- 1340 has more than two factors which are 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340 and hence it is the composite number.
- 1340 is the even composite number and it is not the perfect square also.
- If we divide 1340 by 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340 then we get remainder as zero. Hence, 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340 are the factors of 1340.
Note:
- 1340 is not the perfect square.
- Factors of 1340: 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340
- Prime factors of 1340: 2, 5, 67
Conclusion:
- 1340 is the composite number which has factors1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340
- And hence, 1340 is not the prime number.
Multiple Choice Questions:
1) 1340 is a
a) Even number
b) Not a perfect square number
c) Composite number
d) all
Ans: d) all
2) The composite factors of a composite number 1340 are
a) 4, 10, 20, 134, 268, 335, 670 and 1340
b) 2, 5, 67
c) 1, 4, 10, 20, 134, 268, 335, 670 and 1340
d) 1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340
Ans: a) 4, 10, 20, 134, 268, 335, 670 and 1340
3) 1340 is composite number because
a) It has factors1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670 and 1340
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b