Q: Is 545,617 a Prime Number?
A: Yes, 545,617 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 545617 can be evenly divided by 1 and 545,617, with no remainder.
Since 545,617 can be divided by just 1 and 545,617, it is a prime number.