Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 17)
17.
The smallest 3 digit prime number is:
Answer: Option
Explanation:
The smallest 3-digit number is 100, which is divisible by 2.
100 is not a prime number.
101 < 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11.
101 is a prime number.
Hence 101 is the smallest 3-digit prime number.
Discussion:
22 comments Page 3 of 3.
Puneet said:
1 decade ago
No.
For example 97 is a prime number,
But 9+7=16 (which is a prime number).
Also 127 is a prime number, but 1+2+7=10 ain't.
Similarly 103, 107, 119, 127, 149 etc etc.
For example 97 is a prime number,
But 9+7=16 (which is a prime number).
Also 127 is a prime number, but 1+2+7=10 ain't.
Similarly 103, 107, 119, 127, 149 etc etc.
Suparna said:
1 decade ago
Is this method can be applied in every case?
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