Is 731 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 731 is composite or not first we have to find its factors.
Contents
Factors of 731:
- If we have taken numbers from 1, 2, 3…for checking factors of 731, we found that 731 has factors 1, 17, 43 and 731. Hence, we must say that 731 is a composite number.
- Thus, 731 is the composite number.
- If we multiply 731 by 1, 2, 3 then we get the multiples of 731 which are 731, 1462 and so on.
731 is a Composite number or Prime number
About the number 731:
- 731 has more than two factors which are 1, 17, 43 and 731 and hence it is the composite number.
- 731 is the odd composite number and it is not the perfect square also.
- If we divide 731 by 1, 17, 43 and 731 then we get remainder as zero. Hence, 1, 17, 43 and 731 are the factors of 731
Note:
- 731 is not the perfect square.
- Factors of 731: 1, 17, 43 and 731
- Prime factors of 731: 17, 43
Conclusion:
- 731 is the composite number which has factors 1, 17, 43 and 731.
- And hence, 731 is not the prime number.
Multiple Choice Questions:
1) 731 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 731 are
a) 1
b) 17, 43
c) 1 and 731
d) 1, 17, 43 and 731
Ans: b) 17, 43
3) 731 is the odd composite number because
a) It has factors 1, 17, 43 and 731
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c