26th April 2017, 6:46 AM
Oh, ABF, while the old definition of prime numbers included 1, they have changed the definition of a prime number specifically to EXCLUDE 1.
Before, a prime was any number only divisible by 1 and itself. 1 fits that definition.
Now, a prime is any number exclusively divisible by only two unique numbers. "Unique" is the key word there.
Before, a prime was any number only divisible by 1 and itself. 1 fits that definition.
Now, a prime is any number exclusively divisible by only two unique numbers. "Unique" is the key word there.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)