Q: Is 420,001 a Prime Number?
A: Yes, 420,001 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 420001 can be evenly divided by 1 and 420,001, with no remainder.
Since 420,001 can be divided by just 1 and 420,001, it is a prime number.