Q: Is 420,890 a Prime Number?
A: No, 420,890 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 420890 can be evenly divided by 1 2 5 10 42,089 84,178 210,445 and 420,890, with no remainder.
Since 420,890 cannot be divided by just 1 and 420,890, it is not a prime number.