Is 254 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 254 is composite or not first we have to find its factors.
Contents
Factors of 254:
- If we have taken numbers from 1, 2, 3…for checking factors of 254, we found that 254 has factors 1, 2, 127 and 254. Hence, we must say that 254 is a composite number.
- Thus, 254 is the composite umber.
- If we multiply 254 by 1, 2, 3 then we get the multiples of 254 which are 254, 508, and so on
About the number 254:
- 254 has more than two factors which are1, 2, 127 and 254 and hence it is the composite number.
- 254 is the even composite number and it is not the perfect square also.
- If we divide 254 by1, 2, 127 and 254 then we get remainder as zero. Hence, 1, 2, 127 and 254 are the factors of 254.
Note:
- 254 is not the perfect square.
- Factors of 254: 1, 2, 127 and 254
- Prime factors of 254: 2, 127
Conclusion:
- 254 is the composite number which has factors 1, 2, 127 and 254.
- And hence, 254 is not the prime number.
Multiple Choice Questions:
1) 254 is a
a) Prime number
b) Even number
c) Composite number
d) Both b and c
Ans: d) both b and c
2) The prime factors of a composite number 254 are
a) 1
b) 2, 127
c) Both a and b
d) 1, 2, 127 and 254
Ans: b) 2, 127
3) 254 is the even composite number as it has
a) Only two factors
b) It is divisible by 2
c) More than 2 factors
d) Both b and c
Ans: d) both b and c