Q: Is 420,075 a Prime Number?
A: No, 420,075 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 420075 can be evenly divided by 1 3 5 9 15 25 45 75 225 1,867 5,601 9,335 16,803 28,005 46,675 84,015 140,025 and 420,075, with no remainder.
Since 420,075 cannot be divided by just 1 and 420,075, it is not a prime number.