Is 1330 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 1330 is composite or not first we have to find its factors.
Contents
Factors of 1330:
- If we have taken numbers from 1, 2, 3…for checking factors of 1330, we found that 1330 has factors 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330. Hence, we must say that 1330 is a composite number.
- Thus, 1330 is the composite number.
- If we multiply 1330 by 1, 2, 3 then we get the multiples of 1330 which are 1330, 2660 and so on.
About the number 1330:
- 1330 has more than two factors which are 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330 and hence it is the composite number.
- 1330 is the even composite number and it is not the perfect square also.
- If we divide 1330 by 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330 then we get remainder as zero. Hence, 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330 are the factors of 1330.
Note:
- 1330 is not the perfect square.
- Factors of 1330: 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
- Prime factors of 1330: 2, 5, 7, 19
Conclusion:
- 1330 is the composite number which has factors 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
- And hence, 1330 is not the prime number.
Multiple Choice Questions:
1) 1330 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 1330 are
a) 10, 14, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
b) 2, 5, 7, 19
c) 1, 10, 14, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
d) 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
Ans: a) 10, 14, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
3) 1330 is composite number because
a) It has factors 1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665 and 1330
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b