Q: Is 578,857 a Prime Number?
A: Yes, 578,857 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 578857 can be evenly divided by 1 and 578,857, with no remainder.
Since 578,857 can be divided by just 1 and 578,857, it is a prime number.