Is 475 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 475 is composite or not first we have to find its factors.
Contents
Factors of 475:
- If we have taken numbers from 1, 2, 3…for checking factors of 475, we found that 475 has factors 1, 5, 19, 25, 95 and 475. Hence, we must say that 475 is a composite number.
- Thus, 475 is the composite number.
- If we multiply 475 by 1, 2, 3 then we get the multiples of 475 which are 475, 950 and so on.
475 is a Composite number or Prime number
About the number 475:
- 475 has more than two factors which are 1, 5, 19, 25, 95 and 475 and hence it is the composite number.
- 475 is the odd composite number and it is not the perfect square also.
- If we divide 475 by 1, 5, 19, 25, 95 and 475 then we get remainder as zero. Hence, 1, 5, 19, 25, 95 and 475 are the factors of 475.
Note:
- 475 is not the perfect square.
- Factors of 475: 1, 5, 19, 25, 95 and 475
- Prime factors of 475: 5, 19
Conclusion:
- 475 is the composite number which has factors 1, 5, 19, 25, 95 and 475.
- And hence, 475 is not the prime number.
Multiple Choice Questions:
1) 475 is a
a) odd 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 475 are
a) 1
b) 5, 19
c) 1, 25, 95 and 475
d) 1, 5, 19, 25, 95 and 475
Ans: b) 5, 19
3) 475 is the odd composite number because
a) It has factors 1, 5, 19, 25, 95 and 475
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c