Is 1817 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 1817 is composite or not first we have to find its factors.
Contents
Factors of 1817:
- If we have taken numbers from 1, 2, 3…for checking factors of 1817, we found that 1817 has factors 1, 23, 79 and 1817. Hence, we must say that 1817 is a composite number.
- Thus, 1817 is the composite number.
- If we multiply 1817 by 1, 2, 3 then we get the multiples of 1817 which are 1817, 3634 and so on.
1817 is a Composite number or Prime number
About the number 1817:
- 1817 has more than two factors which are 1, 23, 79 and 1817 and hence it is the composite number.
- 1817 is the odd composite number and it is not the perfect square also.
- If we divide 1817 by 1, 23, 79 and 1817 then we get remainder as zero. Hence, 1, 23, 79 and 1817 are the factors of 1817
Note:
- 1817 is not the perfect square.
- Factors of 1817: 1, 23, 79 and 1817
- Prime factors of 1817: 23, 79
Conclusion:
- 1817 is the composite number which has factors 1, 23, 79 and 1817.
- And hence, 1817 is not the prime number.
Multiple Choice Questions:
1) 1817 is a
a) Even number
b) Prime number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1817 are
a) 1
b) 23, 79
c) 1 and 1817
d) 1, 23, 79 and 1817
Ans: b) 1 and 1817
3) 1817 is the odd composite number because
a) It has factors 1, 23, 79 and 1817
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all