Is 394 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 394 is composite or not first we have to find its factors.
Contents
Factors of 394:
- If we have taken numbers from 1, 2, 3…for checking factors of 394, we found that 394 has factors 1, 2, 197 and 394. Hence, we must say that 394 is a composite number.
- Thus, 394 is the composite umber.
- If we multiply 394 by 1, 2, 3 then we get the multiples of 394 which are 394, 788 and so on.
About the number 394:
- 394 has more than two factors which are 1, 2, 197 and 394 and hence it is the composite number.
- 394 is the even composite number and it is not the perfect square also.
- If we divide 394 by 1, 2, 197 and 394 then we get remainder as zero. Hence, 1, 2, 197 and 394 are the factors of 394.
Note:
- 394 is not the perfect square.
- Factors of 394:1, 2, 197 and 394
- Prime factors of 394: 2, 197
Conclusion:
- 394 is the composite number which has factors 1, 2, 197 and 394
- And hence, 394 is not the prime number.
Multiple Choice Questions:
1) 394 is a
a) Prime number
b) Odd number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The non-prime factors of a composite number 394 are
a) 2
b) 2, 197
c) 1 and 394
d) 1, 2, 197 and 394
Ans: c) 1and 394
3) 394 is the composite number because
a) It has two factors
b) More than two factors
c) Divisible by 2
d) Both b and c
Ans: b) more than two factors