Is 415 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 415 is composite or not first we have to find its factors.
Contents
Factors of 415:
- If we have taken numbers from 1, 2, 3…for checking factors of 415, we found that 415 has factors 1, 5, 83 and 415. Hence, we must say that 415 is a composite number.
- Thus, 415 is the composite number.
- If we multiply 415 by 1, 2, 3 then we get the multiples of 415 which are 415, 830 and so on.
415 is a Composite number or Prime number
About the number 415:
- 415 has more than two factors which are 1, 5, 83 and 415 and hence it is the composite number.
- 415 is the odd composite number and it is not the perfect square also.
- If we divide 415 by 1, 5, 83 and 415 then we get remainder as zero. Hence, 1, 5, 83 and 415 are the factors of 415.
Note:
- 415 is not the perfect square.
- Factors of 415: 1, 5, 83 and 415
- Prime factors of 415: 5, 83
Conclusion:
- 415 is the composite number which has factors 1, 5, 83 and 415.
- And hence, 415 is not the prime number.
Multiple Choice Questions:
1) 415 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 415 are
a) 1
b) 5, 83
c) 1 and 415
d) 1, 5, 83 and 415
Ans: b) 5, 83
3) 415 is the odd composite number because
a) It has factors 1, 5, 83 and 415
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c