Q: Is 421,284 a Prime Number?
A: No, 421,284 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 421284 can be evenly divided by 1 2 3 4 6 12 35,107 70,214 105,321 140,428 210,642 and 421,284, with no remainder.
Since 421,284 cannot be divided by just 1 and 421,284, it is not a prime number.