Q: Is 421,085 a Prime Number?
A: No, 421,085 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 421085 can be evenly divided by 1 5 7 35 53 227 265 371 1,135 1,589 1,855 7,945 12,031 60,155 84,217 and 421,085, with no remainder.
Since 421,085 cannot be divided by just 1 and 421,085, it is not a prime number.