Q: Is 421,285 a Prime Number?
A: No, 421,285 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 421285 can be evenly divided by 1 5 109 545 773 3,865 84,257 and 421,285, with no remainder.
Since 421,285 cannot be divided by just 1 and 421,285, it is not a prime number.