Q: Is 178,643 a Prime Number?
A: Yes, 178,643 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 178643 can be evenly divided by 1 and 178,643, with no remainder.
Since 178,643 can be divided by just 1 and 178,643, it is a prime number.