Aptitude - Numbers - Discussion

We can use the elimination method here.

The question says we need a number that is completely divisible by (2^32 + 1). So, a number that satisfies this condition will be larger than the given number.

Option A and B are obviously smaller.

Option C and D are the choices.

On a closer analysis we find that even option c is smaller than the actual number.

So we are left with option D as our final answer. You need to use your wit rather than calculation to solve a problem.

13*7=91 so not prime number.

how to solve this question? Please tell me.

The Prime number means any number is divisible by one and itself.

@Karthick.

I have not understood your process please explain me with the other examples.

91is not a prime no. Because it is divisible by 13.

Code for prime numbers below 100 is 442233322321.

2,3,5,7 (4)
11,13,17,19 (4)
23,29 (2)
31,37 (2)
41,43,47 (3)
53,59 (2)
61,67 (20
71,73,79 (3)
83,89 (2)
97 (1)

Prime number is nothing but it is divisible by one and itself that type of numbers called prime numbers.

Thanks @Nidhin.

Thank you @Santosh.