The largest known prime number has been discovered by an amateur researcher and former Nvidia employee. The new number is 2 ...

Fortunately, mathematicians have some pretty neat tricks to test if a number is a prime or not, without resorting to working ...

You have most likely heard the term ... as 2 is not a factor of 75. We now try to divide by the next largest prime number which is 3: We can no longer divide by 3, as 3 is not a factor of 25.