Is 1338 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 1338 is composite or not first we have to find its factors.
Contents
Factors of 1338:
- If we have taken numbers from 1, 2, 3…for checking factors of 1338, we found that 1338 has factors 1, 2, 3, 6, 223, 446, 669 and 1338. Hence, we must say that 1338 is a composite number.
- Thus, 1338 is the composite number.
- If we multiply 1338 by 1, 2, 3 then we get the multiples of 1338 which are 1338, 2676 and so on.
About the number 1338:
- 1338 has more than two factors which are 1, 2, 3, 6, 223, 446, 669 and 1338 and hence it is the composite number.
- 1338 is the even composite number and it is not the perfect square also.
- If we divide 1338 by 1, 2, 3, 6, 223, 446, 669 and 1338 then we get remainder as zero. Hence, 1, 2, 3, 6, 223, 446, 669 and 1338 are the factors of 1338.
Note:
- 1338 is not the perfect square.
- Factors of 1338: 1, 2, 3, 6, 223, 446, 669 and 1338
- Prime factors of 1338: 2, 3, 223
Conclusion:
- 1338 is the composite number which has factors 1, 2, 3, 6, 223, 446, 669 and 1338
- And hence, 1338 is not the prime number.
Multiple Choice Questions:
1) 1338 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 1338 are
a) 6, 446, 669 and 1338
b) 2, 3, 223
c) 1, 6, 446, 669 and 1338
d) 1, 2, 3, 6, 223, 446, 669 and 1338
Ans: a) 6, 446, 669 and 1338
3) 1338 is composite number because
a) It has factors 1, 2, 3, 6, 223, 446, 669 and 1338
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b