Is 2530 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 2530 is composite or not first we have to find its factors.
Contents
Factors of 2530:
- If we have taken numbers from 1, 2, 3…for checking factors of 2530, we found that 2530 has factors 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530. Hence, we must say that 2530 is a composite number.
- Thus, 2530 is the composite number.
- If we multiply 2530 by 1, 2, 3 then we get the multiples of 2530 which are 2530, 5060 and so on.
About the number 2530:
- 2530 has more than two factors which are 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530 and hence it is the composite number.
- 2530 is the even composite number and it is not the perfect square also.
- If we divide 2530 by, 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530 then we get remainder as zero. Hence, 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530 are the factors of 2530.
Note:
- 2530 is not the perfect square.
- Factors of 2530: 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530
- Prime factors of 2530: 2, 5, 11, 23
Conclusion:
- 2530 is the composite number which has factors 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530
- And hence, 2530 is not the prime number.
Multiple Choice Questions:
1) 2530 is a
a) Even number
b) Odd number
c) Composite number
d) Both a and c
Ans: d) both a and d
2) The prime factors of a composite number 2530 are
a) 2530
b) 2, 5, 11, 23
c) 1, 10, 22, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530
d) 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530
Ans: b) 2, 5, 11, 23
3) 2530 is composite number because
a) It has factors 1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265 and 2530
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b