Is 1015 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 1015 is composite or not first we have to find its factors.
Contents
Factors of 1015:
- If we have taken numbers from 1, 2, 3…for checking factors of 1015, we found that 1015 has factors 1, 5, 7, 29, 35, 145, 203 and 1015. Hence, we must say that 1015 is a composite number.
- Thus, 1015 is the composite number.
- If we multiply 1015 by 1, 2, 3 then we get the multiples of 1015 which are 1015, 2030 and so on.
1015 is a Composite number or Prime number
About the number 1015:
- 1015 has more than two factors which are 1, 5, 7, 29, 35, 145, 203 and 1015 and hence it is the composite number.
- 1015 is the odd composite number and it is not the perfect square also.
- If we divide 1015 by 1, 5, 7, 29, 35, 145, 203 and 1015 then we get remainder as zero. Hence, 1, 5, 7, 29, 35, 145, 203 and 1015 are the factors of 1015
Note:
- 1015 is not the perfect square.
- Factors of 1015: 1, 5, 7, 29, 35, 145, 203 and 1015
- Prime factors of 1015: 5, 7, 29
Conclusion:
- 1015 is the composite number which has factors 1, 5, 7, 29, 35, 145, 203 and 1015.
- And hence, 1015 is not the prime number.
Multiple Choice Questions:
1) 1015 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 1015 are
a) 1
b) 5, 7, 29
c) 1, 35, 145, 203 and 1015
d) 1, 5, 7, 29, 35, 145, 203 and 1015
Ans: b) 5, 7, 29
3) 1015 is the odd composite number because
a) It has factors 1, 5, 7, 29, 35, 145, 203 and 1015
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c