Is 580 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 580 is composite or not first we have to find its factors.
Contents
Factors of 580:
- If we have taken numbers from 1, 2, 3…for checking factors of 580, we found that 580 has factors 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580. Hence, we must say that 580 is a composite number.
- Thus, 580 is the composite umber.
- If we multiply 580 by 1, 2, 3 then we get the multiples of 580 which are 580, 1160 and so on.
About the number 580:
- 580 has more than two factors which are 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580 and hence it is the composite number.
- 580 is the even composite number and it is not the perfect square also.
- If we divide 580 by 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580 then we get remainder as zero. Hence, 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580 are the factors of 580.
Note:
- 580 is not the perfect square.
- Factors of 580: 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580
- Prime factors of 580: 2, 5, 29
Conclusion:
- 580 is the composite number which has factors 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580
- And hence, 580 is not the prime number.
Multiple Choice Questions:
1) 580 is a
a) Prime number
b) odd number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The non-prime factors of a composite number 580 are
a) 1
b) 2, 5, 29
c) 1, 4, 10, 20, 58, 116, 145, 290 and 580
d) 1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290 and 580
Ans: c) 1, 4, 10, 20, 58, 116, 145, 290 and 580
3) 580 is the composite number because
a) It has two factors
b) More than two factors
c) Divisible by 2
d) Both b and c
Ans: b) more than two factors