Is 14 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 14 is composite or not first we have to find its factors.
Contents
Factors of 14:
- If we have taken numbers from 1, 2, 3…for checking factors of 14, we found that 14 has factors 1, 2, 7 and 14. Hence, we must say that 14 is a composite number.
- Thus, 14 is the composite number.
- If we multiply 14 by 1, 2, 3, then we get the multiples of 14 which are 14, 28, 42…and so on.
About the number 14:
- 14 has more than two factors which are 1, 2, 7 and 14 and hence it is the composite number.
- 14 is the even composite number and it is not the perfect square also.
- If we divide 14 by 1, 2, 7 and 14 then we get remainder as zero. Hence, 1, 2, 7 and 14 are the factors of 14.
Note:
- 14 is not the perfect square.
- Factors of 14: 1, 2, 7, 14
- Prime factors of 14: 2, 7
Conclusion:
- 14 is the composite number which has factors 1, 2, 7 and 14.
- And hence, 14 is not the prime number.
Multiple Choice Questions:
1) 14 is a
a) even number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 14 are
a) 1
b) 2 and 7
c) Both a and b
d) 141
Ans: b)2 and 7
3) 1 is the not prime factor of 14 because
a) It is the prime number
b) 1 is neither prime nor composite number
c) Both a and b
d) Given statement is false
Ans: b) 1 is neither prime nor composite number