Q: Is 420,567 a Prime Number?
A: No, 420,567 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 420567 can be evenly divided by 1 3 7 21 49 147 2,861 8,583 20,027 60,081 140,189 and 420,567, with no remainder.
Since 420,567 cannot be divided by just 1 and 420,567, it is not a prime number.