The number of prime numbers among the numbers 105! +2 ,105! +3, 105!+4......105!+104 , 105!+105 is ??
1 Answer
Oct 25, 2017
There are no prime numbers here.
Explanation:
Every number in the set is divisible by the number added to the factorial, so it is not prime.
Examples
It is an even number, so it is not prime.
This number is divisinble by
All other numbers from this set can be expressed in this way, so they are not prime.