Is 664 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 664 is composite or not first we have to find its factors.
Contents
Factors of 664:
- If we have taken numbers from 1, 2, 3…for checking factors of 664, we found that 664 has factors 1, 2, 4, 8, 83, 166, 332 and 664. Hence, we must say that 664 is a composite number.
- Thus, 664 is the composite umber.
- If we multiply 664 by 1, 2, 3 then we get the multiples of 664 which are 664, 1328 and so on.
About the number 664:
- 664 has more than two factors which are 1, 2, 4, 8, 83, 166, 332 and 664 and hence it is the composite number.
- 664 is the even composite number and it is not the perfect square also.
- If we divide 664 by 1, 2, 4, 8, 83, 166, 332 and 664 then we get remainder as zero. Hence, 1, 2, 4, 8, 83, 166, 332 and 664 are the factors of 664.
Note:
- 664 is not the perfect square.
- Factors of 664: 1, 2, 4, 8, 83, 166, 332 and 664
- Prime factors of 664: 2, 83
Conclusion:
- 664 is the composite number which has factors 1, 2, 4, 8, 83, 166, 332 and 664
- And hence, 664 is not the prime number.
Multiple Choice Questions:
1) 664 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 664 are
a) 1
b) 2, 83
c) 1, 4, 8, 166, 332 and 664
d) 1, 2, 4, 8, 83, 166, 332 and 664
Ans: d) 1, 2, 4, 8, 83, 166, 332 and 664
3) 664 is the even composite number because
a) It has factors 1, 2, 4, 8, 83, 166, 332 and 664
b) More than two factors
c) Divisible by 2
d) all
Ans: d) all