Is 2715 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 2715 is composite or not first we have to find its factors.
Contents
Factors of 2715:
- If we have taken numbers from 1, 2, 3…for checking factors of 2715, we found that 2715 has factors 1, 3, 5, 15, 181, 543, 905 and 2715. Hence, we must say that 2715 is a composite number.
- Thus, 2715 is the composite number.
- If we multiply 2715 by 1, 2, 3 then we get the multiples of 2715 which are 2715, 5430 and so on.
2715 is a Composite number or Prime number
About the number 2715:
- 2715 has more than two factors which are 1, 3, 5, 15, 181, 543, 905 and 2715 and hence it is the composite number.
- 2715 is the odd composite number and it is not the perfect square also.
- If we divide 2715 by 1, 3, 5, 15, 181, 543, 905 and 2715 then we get remainder as zero. Hence 1, 3, 5, 15, 181, 543, 905 and 2715 are the factors of 2715
Note:
- 2715 is not the perfect square.
- Factors of 2715: 1, 3, 5, 15, 181, 543, 905 and 2715
- Prime factors of 2715: 3, 5, 181
Conclusion:
- 2715 is the composite number which has factors 1, 3, 5, 15, 181, 543, 905 and 2715.
- And hence, 2715 is not the prime number.
Multiple Choice Questions:
1) 2715 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 2715 are
a) 1
b) 3, 5, 181
c) 1 and 2715
d) 1, 3, 5, 15, 181, 543, 905 and 2715
Ans: b) 3, 5, 181
3) 2715 is the composite number because
a) It has factors 1, 3, 5, 15, 181, 543, 905 and 2715
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