Is 658 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 658 is composite or not first we have to find its factors.
Contents
Factors of 658:
- If we have taken numbers from 1, 2, 3…for checking factors of 658, we found that 658 has factors 1, 2, 7, 14, 47, 94, 329 and 658. Hence, we must say that 658 is a composite number.
- Thus, 658 is the composite umber.
- If we multiply 658 by 1, 2, 3 then we get the multiples of 658 which are 658, 1316 and so on.
About the number 658:
- 658 has more than two factors which are 1, 2, 7, 14, 47, 94, 329 and 658 and hence it is the composite number.
- 658 is the even composite number and it is not the perfect square also.
- If we divide 658 by 1, 2, 7, 14, 47, 94, 329 and 658 then we get remainder as zero. Hence, 1, 2, 7, 14, 47, 94, 329 and 658 are the factors of 658.
Note:
- 658 is not the perfect square.
- Factors of 658: 1, 2, 7, 14, 47, 94, 329 and 658
- Prime factors of 658: 2, 7, 47
Conclusion:
- 658 is the composite number which has factors 1, 2, 7, 14, 47, 94, 329 and 658
- And hence, 658 is not the prime number.
Multiple Choice Questions:
1) 658 is a
a) Not a perfect square number
b) Even number
c) Composite number
d) all
Ans: d) all
2) The prime and composite factors of a composite number 658 are
a) 1
b) 2, 7, 47
c) 1, 14, 94, 329 and 658
d) 1, 2, 7, 14, 47, 94, 329 and 658
Ans: d) 1, 2, 7, 14, 47, 94, 329 and 658
3) 658 is the even composite number because
a) It has factors 1, 2, 7, 14, 47, 94, 329 and 658
b) More than two factors
c) Divisible by 2
d) all
Ans: d) all