Is 777 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 777 is composite or not first we have to find its factors.
Contents
Factors of 777:
- If we have taken numbers from 1, 2, 3…for checking factors of 777, we found that 777 has factors 1, 3, 7, 21, 37, 111, 259 and 777. Hence, we must say that 777 is a composite number.
- Thus, 777 is the composite number.
- If we multiply 777 by 1, 2, 3 then we get the multiples of 777 which are 777, 1534 and so on.
777 is a Composite number or Prime number
About the number 777:
- 777 has more than two factors which are 1, 3, 7, 21, 37, 111, 259 and 777 and hence it is the composite number.
- 777 is the odd composite number and it is not the perfect square also.
- If we divide 777 by 1, 3, 7, 21, 37, 111, 259 and 777 then we get remainder as zero. Hence, 1, 3, 7, 21, 37, 111, 259 and 777 are the factors of 777
Note:
- 777 is not the perfect square.
- Factors of 777: 1, 3, 7, 21, 37, 111, 259 and 777
- Prime factors of 777: 3, 7, 37
Conclusion:
- 777 is the composite number which has factors 1, 3, 7, 21, 37, 111, 259 and 777.
- And hence, 777 is not the prime number.
Multiple Choice Questions:
1) 777 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 777 are
a) 1
b) 3, 7, 37
c) 1, 21, 111, 259 and 777
d) 1, 3, 7, 21, 37, 111, 259 and 777
Ans: b) 3, 7, 37
3) 777 is the odd composite number because
a) It has factors 1, 3, 7, 21, 37, 111, 259 and 777
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c