Is 783 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 783 is composite or not first we have to find its factors.
Contents
Factors of 783:
- If we have taken numbers from 1, 2, 3…for checking factors of 783, we found that 783 has factors 1, 3, 9, 27, 29, 87, 261 and 783. Hence, we must say that 783 is a composite number.
- Thus, 783 is the composite number.
- If we multiply 783 by 1, 2, 3 then we get the multiples of 783 which are 783, 1566 and so on.
783 is a Composite number or Prime number
About the number 783:
- 783 has more than two factors which are 1, 3, 9, 27, 29, 87, 261 and 783 and hence it is the composite number.
- 783 is the odd composite number and it is not the perfect square also.
- If we divide 783 by 1, 3, 9, 27, 29, 87, 261 and 783 then we get remainder as zero. Hence, 1, 3, 9, 27, 29, 87, 261 and 783 are the factors of 783
Note:
- 783 is not the perfect square.
- Factors of 783: 1, 3, 9, 27, 29, 87, 261 and 783
- Prime factors of 783: 3, 29
Conclusion:
- 783 is the composite number which has factors 1, 3, 9, 27, 29, 87, 261 and 783.
- And hence, 783 is not the prime number.
Multiple Choice Questions:
1) 783 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 783 are
a) 1
b) 3, 29
c) 1 and 783
d) 1, 3, 29 and 783
Ans: b) 3, 29
3) 783 is the odd composite number because
a) It has factors 1, 3, 29 and 783
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c