Is 4815 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 4815 is composite or not first we have to find its factors.
Contents
Factors of 4815:
- If we have taken numbers from 1, 2, 3…for checking factors of 4815, we found that 4815 has factors 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815. Hence, we must say that 4815 is a composite number.
- Thus, 4815 is the composite number.
- If we multiply 4815 by 1, 2, 3 then we get the multiples of 4815 which are 4815, 9630 and so on.
4815 is a Composite number or Prime number
About the number 4815:
- 4815 has more than two factors which 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815 are hence it is the composite number.
- 4815 is the odd composite number and it is not the perfect square also.
- If we divide 4815 by 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815 then we get remainder as zero. Hence 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815 are the factors of 4815.
Note:
- 4815 is not the perfect square.
- Factors of 4815:1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815
- Prime factors of 4815:3, 5, 107
Conclusion:
- 4815 is the composite number which has factors 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815.
- And hence, 4815 is not the prime number.
Multiple Choice Questions:
1) 4815 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 4815 are
a) 1
b) 3, 5, 107
c) 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815
d) 1, 9, 15, 45, 321, 535, 963, 1605 and 4815
Ans: b) 3, 5, 107
3) 4815 is the composite number because
a) It has factors 1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605 and 4815
b) It has more than two factors
c) It is not divisible by 2
d) Both a and b
Ans: d) both a and b
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