Is 747 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 747 is composite or not first we have to find its factors.
Contents
Factors of 747:
- If we have taken numbers from 1, 2, 3…for checking factors of 747, we found that 747 has factors 1, 3, 9, 83, 249 and 747. Hence, we must say that 747 is a composite number.
- Thus, 747 is the composite number.
- If we multiply 747 by 1, 2, 3 then we get the multiples of 747 which are 747, 1494 and so on.
747 is a Composite number or Prime number
About the number 747:
- 747 has more than two factors which are 1, 3, 9, 83, 249 and 747 and hence it is the composite number.
- 747 is the odd composite number and it is not the perfect square also.
- If we divide 747 by 1, 3, 9, 83, 249 and 747 then we get remainder as zero. Hence, 1, 3, 9, 83, 249 and 747 are the factors of 747
Note:
- 747 is not the perfect square.
- Factors of 747: 1, 3, 9, 83, 249 and 747
- Prime factors of 747: 3, 83
Conclusion:
- 747 is the composite number which has factors 1, 3, 9, 83, 249 and 747.
- And hence, 747 is not the prime number.
Multiple Choice Questions:
1) 747 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 747 are
a) 1
b) 3, 83
c) 1 and 747
d) 1, 3, 83 and 747
Ans: b) 3, 83
3) 747 is the odd composite number because
a) It has factors 1, 3, 83 and 747
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c