Q: Is 505,646 a Prime Number?
A: No, 505,646 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 505646 can be evenly divided by 1 2 252,823 and 505,646, with no remainder.
Since 505,646 cannot be divided by just 1 and 505,646, it is not a prime number.