Is 223 is a prime 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 223 is prime or not first we have to find its factors.
Contents
Factors of 223:
- If we have taken numbers from 1, 2, 3…for checking factors of 223, we found that 223 has factors 1 and the number 223 itself. Hence, we must say that 223 is a prime number.
- Thus, 223 is the prime number.
- Here, 223 is the odd prime number.
- If we multiply 223 by 1, 2, 3, then we get the multiples of 223 which are 223, 446, 669…and so on.
About the number 223 :
- 223 has only two factors which are 1 and the number itself and hence 223 is the prime number.
- 223 is the odd prime number and it is not the perfect square also.
- If we divide 223 by 1 and the number itself then we get remainder as zero. Hence, 1 and 223 are the factors of 223.
Note:
- 223 is not the perfect square.
- Factors of 223: 1 and 223
- Prime factors of 223: 223 (since, 223 is the only one prime number which is the factor of 223.)
Conclusion:
- 223 is the prime number which has factors 1 and 223.
- And hence, 223 is the prime number.
Multiple Choice Questions:
1) 223 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and b
Ans: d) both a and b
2) The prime factors of a prime number 223 are
a) 1
b) 223
c) Both a and b
d) 0
Ans: b) 223
3) 1 is the not prime factor of 223 because
a) It is the prime number
b) 1 is neither prime nor composite number
c) Both a and b
d) Given statement is false
Ans: b) 1 is neither prime nor composite number