Is 1822 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 1822 is composite or not first we have to find its factors.
Contents
Factors of 1822:
- If we have taken numbers from 1, 2, 3…for checking factors of 1822, we found that 1822 has factors 1, 2, 911 and 1822. Hence, we must say that 1822 is a composite number.
- Thus, 1822 is the composite number.
- If we multiply 1822 by 1, 2, 3 then we get the multiples of 1822 which are 1822, 3644 and so on.
About the number 1822:
- 1822 has more than two factors which are 1, 2, 911 and 1822 and hence it is the composite number.
- 1822 is the even composite number and it is not the perfect square also.
- If we divide 1822 by, 1, 2, 911 and 1822 then we get remainder as zero. Hence, 1, 2, 911 and 1822 are the factors of 1822.
Note:
- 1822 is not the perfect square.
- Factors of 1822: 1, 2, 911 and 1822
- Prime factors of 1822: 2, 911
Conclusion:
- 1822 is the composite number which has factors 1, 2, 911 and 1822
- And hence, 1822 is not the prime number.
Multiple Choice Questions:
1) 1822 is a
a) Prime number
b) Odd number
c) Composite number
d) Both a and c
Ans: c) composite number
2) The non-prime factors of a composite number 1822 are
a) 1822
b) 2, 911
c) 1 and 1822
d) 1, 2, 911 and 1822
Ans: c) 1 and 1822
3) 1822 is composite number because
a) It has factors 1, 2, 911 and 1822
b) It has only two factors
c) Divisible by 2
d) Both a and c
Ans: a) it has factors 1, 2, 911 and 1822