Is 1393 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 1393 is composite or not first we have to find its factors.
Contents
Factors of 1393:
- If we have taken numbers from 1, 2, 3…for checking factors of 1393, we found that 1393 has factors 1, 7, 199 and 1393. Hence, we must say that 1393 is a composite number.
- Thus, 1393 is the composite number.
- If we multiply 1393 by 1, 2, 3 then we get the multiples of 1393 which are 1393, 2786 and so on.
1393 is a Composite number or Prime number
About the number 1393:
- 1393 has more than two factors which are 1, 7, 199 and 1393 and hence it is the composite number.
- 1393 is the odd composite number and it is not the perfect square also.
- If we divide 1393 by 1, 7, 199 and 1393 then we get remainder as zero. Hence, 1, 7, 199 and 1393 are the factors of 1393
Note:
- 1393 is not the perfect square.
- Factors of 1393: 1, 7, 199 and 1393
- Prime factors of 1393: 7, 199
Conclusion:
- 1393 is the composite number which has factors 1, 7, 199 and 1393.
- And hence, 1393 is not the prime number.
Multiple Choice Questions:
1) 1393 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1393 are
a) 1
b) 7, 199
c) 1 and 1393
d) 1, 7, 199 and 1393
Ans: b) 1 and 1393
3) 1393 is the odd composite number because
a) It has factors 1, 7, 199 and 1393
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all