Question

have no brain u cannot solve this question i bet.i already posted this question no one answered because u all dont have common logical sense .if u answer this i will do anything u say

A teacher wrote a large number on the board and asked the students to tell about the divisors of the number one by one.

The 1st student said, "The number is divisible by 2."
The 2nd student said, "The number is divisible by 3."
The 3rd student said, "The number is divisible by 4."
.
.
.
(and so on)
The 30th student said, "The number is divisible by 31”

The teacher then commented that exactly two students, who spoke consecutively, spoke wrongly.

Which two students spoke wrongly? Explain your answer with appropriate justification.

Answer 1

"15th and 16th" Students is the answer.

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❂❂Here is your Solution❂❂
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✔So, this must be a prime number..

▶Similarly, the even number in the pair cannot have any odd factors either, so it can only be a power of 2.

▶The only available primes in the range are 17, 19, 23 and 29, of the numbers adjacent to these primes only 16 is a power of 2.

▶ All the remaining numbers 18,20,22,24,28,30 have at least one odd factor. 

▶So, the consecutive numbers can only be (16 and 17) which were called out by the "15th" and "16th" students.