Is 478 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 478 is composite or not first we have to find its factors.
Contents
Factors of 478:
- If we have taken numbers from 1, 2, 3…for checking factors of 478, we found that 478 has factors 1, 2, 239 and 478. Hence, we must say that 478 is a composite number.
- Thus, 478 is the composite umber.
- If we multiply 478 by 1, 2, 3 then we get the multiples of 478 which are 478, 956 and so on.
About the number 478:
- 478 has more than two factors which are 1, 2, 239 and 478 and hence it is the composite number.
- 478 is the even composite number and it is not the perfect square also.
- If we divide 478 by 1, 2, 239 and 478 then we get remainder as zero. Hence, 1, 2, 239 and 478 are the factors of 478.
Note:
- 478 is not the perfect square.
- Factors of 478:1, 2, 239 and 478
- Prime factors of 478: 2, 239
Conclusion:
- 478 is the composite number which has factors 1, 2, 239 and 478
- And hence, 478 is not the prime number.
Multiple Choice Questions:
1) 478 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 478 are
a) 2
b) 2, 239
c) 1 and 478
d) 1, 2, 239 and 478
Ans: b) 2, 239
3) 478 is the even composite number because
a) It has two factors
b) More than two factors
c) Divisible by 2
d) Both b and c
Ans: d) both b and c