Q: Is 646,001 a Prime Number?
A: No, 646,001 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 646001 can be evenly divided by 1 23 28,087 and 646,001, with no remainder.
Since 646,001 cannot be divided by just 1 and 646,001, it is not a prime number.