Is 666 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 666 is composite or not first we have to find its factors.
Contents
Factors of 666:
- If we have taken numbers from 1, 2, 3…for checking factors of 666, we found that 666 has factors 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666. Hence, we must say that 666 is a composite number.
- Thus, 666 is the composite umber.
- If we multiply 666 by 1, 2, 3 then we get the multiples of 666 which are 666, 1332 and so on.
About the number 666:
- 666 has more than two factors which are 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666 and hence it is the composite number.
- 666 is the even composite number and it is not the perfect square also.
- If we divide 666 by 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666 then we get remainder as zero. Hence, 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666 are the factors of 666.
Note:
- 666 is not the perfect square.
- Factors of 666: 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666
- Prime factors of 666: 2, 3, 37
Conclusion:
- 666 is the composite number which has factors 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666
- And hence, 666 is not the prime number.
Multiple Choice Questions:
1) 666 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 666 are
a) 1
b) 2, 3, 37
c) 1, 6, 9, 18, 74, 111, 222, 333 and 666
d) 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666
Ans: d) 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666
3) 666 is the even composite number because
a) It has factors 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333 and 666
b) More than two factors
c) Divisible by 2
d) all
Ans: d) all