Q: Is 420,028 a Prime Number?
A: No, 420,028 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 420028 can be evenly divided by 1 2 4 7 14 28 49 98 196 2,143 4,286 8,572 15,001 30,002 60,004 105,007 210,014 and 420,028, with no remainder.
Since 420,028 cannot be divided by just 1 and 420,028, it is not a prime number.