Is 465 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 465 is composite or not first we have to find its factors.
Contents
Factors of 465:
- If we have taken numbers from 1, 2, 3…for checking factors of 465, we found that 465 has factors 1, 3, 5, 15, 31, 93, 155 and 465. Hence, we must say that 465 is a composite number.
- Thus, 465 is the composite number.
- If we multiply 465 by 1, 2, 3 then we get the multiples of 465 which are 465, 930 and so on.
465 is a Composite number or Prime number
About the number 465:
- 465 has more than two factors which are 1, 3, 5, 15, 31, 93, 155 and 465 and hence it is the composite number.
- 465 is the odd composite number and it is not the perfect square also.
- If we divide 465 by 1, 3, 5, 15, 31, 93, 155 and 465 then we get remainder as zero. Hence, 1, 3, 5, 15, 31, 93, 155 and 465 are the factors of 465.
Note:
- 465 is not the perfect square.
- Factors of 465: 1, 3, 5, 15, 31, 93, 155 and 465
- Prime factors of 465: 3, 5, 31
Conclusion:
- 465 is the composite number which has factors 1, 3, 5, 15, 31, 93, 155 and 465.
- And hence, 465 is not the prime number.
Multiple Choice Questions:
1) 465 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 465 are
a) 1
b) 3, 5, 31
c) 1, 15, 93, 155 and 465
d) 1, 3, 5, 15, 31, 93, 155 and 465
Ans: b) 3, 5, 31
3) 465 is the odd composite number because
a) It has factors 1, 3, 5, 15, 31, 93, 155 and 465
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c