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 3 of 5.
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.
Guru said:
9 years ago
Good explanation thanks to all.
Madan said:
9 years ago
3 * 11 = 33,
3 * 3 * 9 = 81,
3 * 31 = 93,
But 97/3 = It's not whole number. So 97 is the correct answer.
3 * 3 * 9 = 81,
3 * 31 = 93,
But 97/3 = It's not whole number. So 97 is the correct answer.
Viki said:
1 decade ago
Because 97 is not divided by 3. Other numbers are divided by 3 so the answer is 97.
Balram said:
1 decade ago
Because it is not disible any other no.
Divi said:
1 decade ago
I can't get you.
Niranjan Nande said:
1 decade ago
Please take any perfect square near of 97 i.e 10*10=100. Now find all prime numbers which are less than 10 that are 3,5,7.Now at last check wheather 97 is divisible by 2,3,7.If it is divisible then number is not prime else it is prime.
Ginu said:
1 decade ago
97 is a prime number.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers