Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 9)
9.
Which of the following is a prime number ?
Answer: Option
Explanation:
Clearly, 97 is a prime number.
Discussion:
47 comments Page 2 of 5.
Yoga said:
8 years ago
A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself. The smallest twenty-five prime numbers (all the prime numbers under 100) are:.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
Note: 1 is not a prime number.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
Note: 1 is not a prime number.
(7)
Deekshi said:
8 years ago
Prime Number means having only 2 factors those are 1 and it self. So 97 is a prime number.
Malik said:
8 years ago
How it is prime number?
Aditya said:
8 years ago
31 * 3 = 93 that's why 97 is prime.
Diya said:
8 years ago
Here, 7 and 13 are the factors of 97. Then how it is prime?
Likkitha said:
8 years ago
Can you please give me the explain about this in a detailed manner?
Prasad said:
9 years ago
If a number have exactly two factors that number called prime number.
ex:7 has 1 and 7 only factors so its prime number and suppose 6 has 1,2,3,6 has factors so it's not the prime number.because it should be exactly 2 factors but here 4 factors are theirs. So it's not the prime number.
Hope you, understand
ex:7 has 1 and 7 only factors so its prime number and suppose 6 has 1,2,3,6 has factors so it's not the prime number.because it should be exactly 2 factors but here 4 factors are theirs. So it's not the prime number.
Hope you, understand
Sravani said:
9 years ago
Is there any shortcut formula to solve this?
Sravani said:
9 years ago
How to identify the prime numbers easily?
Please tell me I'm very confused anyone please tell me.
Please tell me I'm very confused anyone please tell me.
Harish said:
9 years ago
I understand now, thanks @Viki.
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