Is 656 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 656 is composite or not first we have to find its factors.
Contents
Factors of 656:
- If we have taken numbers from 1, 2, 3…for checking factors of 656, we found that 656 has factors 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656. Hence, we must say that 656 is a composite number.
- Thus, 656 is the composite umber.
- If we multiply 656 by 1, 2, 3 then we get the multiples of 656 which are 656, 1312 and so on.
About the number 656:
- 656 has more than two factors which are 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656 and hence it is the composite number.
- 656 is the even composite number and it is not the perfect square also.
- If we divide 656 by 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656 then we get remainder as zero. Hence, 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656 are the factors of 656.
Note:
- 656 is not the perfect square.
- Factors of 656: 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656
- Prime factors of 656: 2, 41
Conclusion:
- 656 is the composite number which has factors 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656
- And hence, 656 is not the prime number.
Multiple Choice Questions:
1) 656 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 656 are
a) 1
b) 2, 41
c) 1, 4, 8, 16, 82, 164, 328 and 656
d) 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656
Ans: d) 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656
3) 656 is the even composite number because
a) It has factors 1, 2, 4, 8, 16, 41, 82, 164, 328 and 656
b) More than two factors
c) Divisible by 2
d) all
Ans: d) all